My friend has 1.300.000 miles on his 2010 cascadia DD15 engine. It does consume lots of oil, but it’s still running. Mine got 912.000 miles 505 HP and I never ad any oil from change to change. To mention that I do maintain it every 10.000 miles and I’m happy with it. Great engine, good power and pretty good diesel economy.
Eric Vig I do have Dd15 and it has 720 miles, drives just find, and has no leaks at all. I think the reason why is doing well is I don’t hour more then 35lb and I do my oil change every 10,000 miles, that’s is why.
Eric Vig. If you've never seen an engine that clean and with so little wear inside you obviously haven't worked on a Scania V8 with a million miles on it. They look like they have just been assembled at one million miles and are as clean inside as the day they were built. I admit this engine looks pretty good for the mileage but it's no better than I would expect from a Scania straight Six or V8 engine. They achieve a standard that very few manufactures can match and that's why their number one no matter what the terrain or load imposed on them.
@@CarlosDieselElectric I'm very grateful for your help even though you are in Cali and I'm in Chicago. On Nov 1, 2019 my truck brokedown it was the fuel pump. I had no money after the towing to really spend on a shop repair. I jumped on your channel, I followed the instructions on the fuel pump replacement video and knocked that sucker out in 2 days. In my opinion I think I was back on the road faster then if I had taken it to a shop. I tell everyone about your channel when they ask me about repairs I do on my cascadia
Josif Maracine 1) regular oil changes with quality oil and filters. 2) replace your oil suction module immediately if you notice oil pressure is fluctuating. 3) always have at least 1/4 tank of fuel or more to help ensure longevity of injectors and high pressure fuel pump. 4) perform valve adjustments at the correct intervals. This may sound like a lot but I have seen a few DD15’s with over 1,000,000 miles on the original engine and still going.
We will miss our fleet of 12.7 series 60s when they are gone. None of the new emission engines compare in terms of reliability. Detroit, Cat, Cummins, Volvo emission engines can all be found beside your favorite interstate puking their guts out. The pre-emission 12.7 was a true money-making piece of cast iron and steel.
@@marceloevera2009 .. I got out of trucking because of e-logs. However, my Fitzgerald Glider had a 12.7. I had it turned-up to a 575, and 1850 torque. That was the forth 12.7 I had owned. I promise you, the 12.7's are the most economical, and reliable engines ever made. I would put the N-14 in a close 2nd place. It costs you more money to operate, and maintain that Cat, then it does for a 12.7 owner. As long as I kept my 12.7 at 65mph, I was rocking 7.0 mpg. I don't have anything against Cat motors, but the 12.7 is/was the best ALL AROUND you can own...
@@marceloevera2009 I wish you could have seen me laughing at your maintenance bills v.s. my maintenance bills. Lets compare a 12.7 in-frame v.s. a Cat in-frame. Again, it's gonna cost you way more than the 12.7. When you own a truck, you should be business smart. I don't care how fast your Cat will run. Running 80 mph, isn't very business smart. Do you know very much about economics, financial planning, or being business smart?
I have a 2010 cascadia dd15 1.1 million miles original miles, replaced all outside components, and updates .Inside the engine i just replaced the injectors..bearings are at 90 % wear...and still going!!!
@@TroyP20 if you can afford it replace the whole engine at 800 900k it will cost you around 50k on an engine swap with extended warranty 3 years 300k miles parts and labour nationwide ask at an iland detroit dealear about prices NOT Freightliner dealer!
I do have to say. I've been working on the DD series for 6 years at Freightliner. The engine would not be that clean for sure. Cam frames, oil/coolant modules, crankcase vapor separator, and air compressors are the most common leaks. That's the biggest thing I fix is oil leaks. Very few valve cover, front/rear main seals, and rear structure gaskets. I've seen plenty with holes clear through the block for no reason, some had reasons due to neglect. Over all the performance of a 495 hp DD13 to a 515 hp 14.0 S60 the DD13 will run circles around the S60. DD15 is tuned for fuel economy so it doesn't pull as aggressive as a 13 or 16, unless you get one with 561 hp then it will pound the ground! If your looking at getting a DD series engine here's some tips. Got service history if possible. A dealer should be able to get the claims history. Around 450-500k miles you'll see came frames leaking, engine sensor harnesses will fail due to wires chaffing inside the loom, and oil pickup tube orings causing low oil pressure at start up. Dpf's will usually last 450-600k depending on operating loads and such. SCR cat will last around 650k unless a previous failure burned them out or poisoned them. Early DD series (08-12) had injector cup orings problems, but most all of them would have failed and been repaired by now. The internal shots in the video are exactly what I've seen in the field. I pulled one down that had 850k miles and had a wrist pin retainer fail. All the bearing looked brand new. Liners and rings had wear but plenty of life left in it. These bearings are very sensitive to dirty and low oil pressure. They can scratch and be fine, but if something big enough gets in the material flakes off, or metal to metal contact, and then its by by rod or main bearing. These have spattered bearings, not multi-layer. I do like this engine. Its easy to service and maintain, but parts are $$$$ and parts availability is still a problem 10 years after introduction. It's still a machnical thing made by humans and maintained by humans, so you'll still have problems here and there. The things can't handle lack of care like the S60 did, but you can overheat them to 265*F and they'll be just fine; dang belt driven water pump. I'd like to hear from the Euro truck drivers about the equivalent om470, 471, and 473. Is there an om472? Any questions just ask.
Marnin Gehman we have a bunch of m2's with dd13's in them. oil and coolant leaks are so hard to keep up with in them. a handful of them get to 500-600k and liner seals on cylinder 3 or 4 start leaking coolant into the oil. 2016 dd13 with front seals and air compressor oil leaks and coolant lines leaking. it's amazing how much these things are in the shop.
I have 2013 cascadia DD15. 600k miles. I have buildup around the oil housing some of the bolts have something like acid from a battery. Best way I can describe it. It's white substance with some color from what I think is from the coolant which is red. Is that something I should be worried about? I also do have low oil pressure warnings that comes and goes when I start the engine. I push the accelerator and it stabilizes before it shuts off. I also have rough idling, which I hear could be fuel pump or quantity control valve. Any advice is greatly appreciated. I'm wanting to do some preventative maintenance.
JZ Look around ahead of the oil filter module for a coolant leak blowing back. there is a blue coolant hose at the front of that for the egr cooler that leaks, or the line from coolant reservoir, or the crossover hose. supposedly the oil pickup orings were fixed in 2013 but I don't believe it with what we've been seeing. replace the oil pickup manifold, the four orings on the manifold to pump connection. we change oil pumps while we're at it too, but some places don't.
Three weeks ago i went out on a road service call when the driver said his DD15 went pop & shut down on I-15. Right before I got to him I stopped & picked up the connecting rod lying in the middle of the road. #2 rod went out the left side of the block, bounced on the road then knocked a hole in the power divider front cover before taking a line off a trailer brake can. It had 36k miles on it. Oh & I really love the location of the air compressor too, on the left rear behind the fuel system.
@@glenalguire6960 Low mile failures are more common than you think. Last week I went out to a 24 Mack Anthem in Cokeville Wyoming that had a low coolant shutdown. The plastic expansion tank was split open at the seam. The company had me drive to SLC for a new tank & go back out there & replace it. After poring 14 gallons of coolant into it I figured we had another problem & it was all in the oil pan. With a $3600 road service bill it needed a hook back to Mountain West in Utah. It had 42k on the clock.
the problem is never the engine its always an emission system problem. my truck has broke down twice and both times were emission. the nox sensor and a def injection block.
This is a common issue to all truck brands. It doesn't have to do anything with the engine. It's a separate system. Just wait for SCR filter to get clogged around 350k. Make sure you have ready 7 to 10k to replace it.
Yes, most likely your issues with the DD platform will be aftertreatment related. That has been my personal experience until I had "the cancer removed " 🤫
I have 960k on my dd15 and never have had a major repair and never been towed. Lifetime average mpg 8.6. My truck has amazing power. I run only the western US and hardly ever downshift on grades.
I have a 2015 Detroit DD16 with 284600 oilfield miles and 13,200 hrs on it. Haven't touched anything but for P.M. service and belts. Never have had any DPF filter issues. I use lucas fuel additive every other fill-up and Lucas Diesel DPF DEEP CLEAN every 6 weeks.😎👍
The forgot to mention the 235 times this engine went to the shop for emission related issues . I'll take a series 60 with 500k over a brand new DD15 any day and twice on Sunday .
Dan R I agree to a point. The EPA07 DDEC 6 Series 60 was an abomination compared to the EPA07 DDEC 6 DD15. Comparing the engine platforms on their own without aftertreatment in mind, the DD15 is superior.
This teardown and inspection is not at all biased lol, in my experience if an engine with any miles on it doesn't leak it's because there isn't any oil in it. Especially these new regen engines the heat cycles are insane. ice cold egts 80% of the time to meet the unrealistic nox levels, and dumping raw fuel in the exhaust to burn something that is already burnt. That is a recipe for failure in any engine, that engine was definitely cleaned inside and out for this ADVERTISEMENT before hand, also love how that TECHNICIAN dragged the conrod along the cylinder wall!
Yes an owner operator is generally gonna take better care..but these fleet trucks are generally trashed buy the driver.....the dd15 is a good engine...not sure why I made my original post. Mustang been drunk or something.
I have 750k on mine and have replaced all my injectors, egr cooler, radiator, starters,alterators, multiple sensors of all kinds,Sam computer, and now in shop needing a 1 box. NOT FLAWLESS AT ALL. Maintained regularly with synthetic oil Lucas and motorkote. Truck even has APU for low idling hours.
🤦🏻🙋Guilty! Every time I get a PM the Mechanics tell me I have an oil leak. I tell them no kidding its a Detroit. Show me one that doesn't leak. My truck has been leaking since I got it at 500k miles I'm at 950k miles and have done absolutely nothing to the engine, it's still running strong. Detroit is a good leaky engine only problem is the emissions.
I've had mine for almost 2 years and no leaks.The trick is to keep the pan seals pliable so they dont leak.I use Lucas oil stabilizer to keep the seals pliable.
@@yosefshawarma3739 How dare you sir! The Detroit at most is a distant step cousin...lol. Twin brother...huh, the nerve of this guy! Lay off the narcotics fella😴
I have a 2013 Freightliner cascadia DD-15 with 1,100,000 + miles on it. Motor still to this day has zero blow-by and has never used a drop of oil in between 15,000 mile oil changes. I've definitely had oil leak issues through the years. Oil pan gasket, turbo oil line, fuel rail, etc. Emissions on the motor have not been that bad. Particulate filters last around 350k on average. O-rings on oil pump will definitely let you down. I've changed mine twice. Lost all oil pressure around 1 Mill due to oil pump pick up or something another had rods and mains replaced. Overall it's been a great engine would definitely buy another.
By 840000 miles on my D15 had to get a overhaul. After the in-frame was don't. It still have 4 leaks I needed to get taken care of. Most of the time it's been a pretty solid engine. Even though that was the second in-rame that got done.
@TheOneFromFuture yes the were. My truck was leaving big oil spots everywhere. By the time I got it fixed it was losing a gallon a day. Cost me another $6000
@TheOneFromFuture it hasn't leaked oil since. But sometimes I pull into a relatively clean spot. And I'll see a oil leak and panic. Until I realized that it wasn't from my truck
I have been a diesel mechanic /marine engineer for 47 years . I was trained at Rolls-Royce in New Zealand . I would put that engine back togather and return it for anouther 700.00miles
Dude said it himself - "it normally should show signs of leakage." This unit did not. Well, that's the case when you maintain a truck well. It's normal to have no leaks after they been repaired.
Can you guys post different jobs you do on Freightliner DD15 engines ? Example, how to remove / replace the DPK unit. Also, can you post videos on what types of services to be done on Freightliner DD15 engines at 100,000 miles, 300,000 miles, 500,000 miles, and 900,000 / 1 million miles. I’d appreciate it. Thanks.
***** I guess you mean a Series 60. Well wouldn't know what to do with it since I don't have a rig. But I drove them several years ago when i was in the Army. I drove a 977 HEMTT with a 8V92 in it.. But I just notice everything made nowadays (like cars) are not made to last. I own a 2000 Jeep Cherokee in good condition, and all of a sudden the past weekend, the ECM goes out on it, it is going to be about 1500 or more to replace it. Well why did it go out in the first place? I think it was designed an engineered to last a certain period of time and then fail, ensuring that I go pay the mechanic a visit. Of course I hate it because I liked and remember the days when shit was simple and I did all my own repairs. And of course they are doing the same thing with big trucks. I see all this polllution shit these new engines are required to gave, like the DD16, etc. All I can say is GOD DAMN THE 21ST CENTURY !!
I disagree with the assessment that engines aren't built to last anymore. I work for a Detroit Diesel dealer and have noticed over the years that all of the mechanical work is drying up. During the 2-stoke days the engines just didn't last and needed periodic rebuilds. During the Series 60 days you would always have tons of rebuilds and bearing replacements, but they were lasting longer then the 2-strokes. Now with the DD engines, they almost last the life of the truck (mind you a lot of the trucks are throw-away trucks after so many miles now, like the Cascadia). A DD with a million miles without a rebuild is common, a S60 is rare, a 2-stroke extremely rare or even impossible.
OIl quality and correct oil change intervals are super important to main bearing wear, and wear on other components. I know of a Gen 2 ISX-600 (non egr) that completed 2 million km's hauling 65,000kg B-double application on long distance interstate.......it was using Fuchs 10w-40 full synthetic oil, 20,000km oil changes......and was still providing power in spec, oil consumption minimal and excellent fuel economy. It only required one valve lash adjustment in its life, and mechanic commented that it was almost not necessary, and all the valve train looked new at 1.5 million km.
They can keep it. I just rebuilt my 2007 14 liter 60s. Its loud. But gets 6.5 mpg with a full load. It's still profitable and cheap to work on. 16k for a full I frame at the dealer. On this engine u get just an emmsions system for that money..
I’ve worked on all types of Diesel engines for the last 50years and have to admit those parts he removed from that engine were in excellent condition and could have been rebuilt,I would put new bearings shells and piston rings in just to be extra fussy,having said that it’s nothing I would expect to find in a Scania or Volvo engine which have done horrendous mileage’s. Cat powered vehicles we run were exactly the same,brilliant longevity and reliability from all three manufacturers. Detroit Diesel made brilliant 2stroke engines which I’ve seen run for ever in loading shovels and plant machines so it’s only to be expected that the new engines are good.
Stop lying to people, I spent over $10,000 last year alone on Emissions problems. Nox sensors, EGR parts, DEF parts, and all other types of issues. I'm sick and tired of it. I want to know who the idiot was that came up with this new clean Air crap. It's nothing but a headache, and it's extremely hard to run a business when you're in the shop every three weeks with after treatment issues
I think people are missing a key observation from the tech. He is mention where he expects leaks and wicking to be. So my take is they're amazed on a specific engine they're make a video. This is possible with a good operator/driver behind the helm.
In the oilfields you are lucky to get a Detroit- MTU to hold up! 8 years in the industry and if it doesn't say cat or Cummins it won't hold up to the abuse!
1.060.000 miles on my DD15. No major issues. Some coolant lines, coolant pump, clutch at 870k, fuel quantity valve over a million....that's about it. 16-20k oil change and never start driving if oil temperature below 170 F.
@@bhaydenca 1294635 No engine issues. I replaced transmission, automatic, and after a week i got some harness issues collaborated with some transmission software issues. It took three months to be fixed Engine software was not matching the new transmission software. Deleted DPF. They were developing new engine software and i had to wait for it. Runs perfect. The new engine software loses the peak power but i gain in fuel consumption. Stays on 7mpg which is very good for me at this mileage.
Did a cylinder head on a 2008 with 1.7M kms as the intake temp sensor had failed and a piece got stuck in intake valve and burnt it and while we were at it pulled oil pan to check bottom end and replace pick up oil seals and it looked exactly like this does, oil changes every 20K probably helps and it runs on Delvac Full Protection 15w40 fyi
No oil leaks? Please... you pressure wash it before or after removal from chassis? Cascading oil leaks from the oil filter/cooler housing and rocker box gasket after 250k on every. single. engine. period.
I drive an International 9400I with a Cummins ISX 435 horsepower no def or regen only EGR had to replace that twice. Otherwise a very dependable engine 1.2 million miles and so far still going strong Had to replace a cam shaft as well the one that operates the valves not the one for the injectors
As a fellow driver, I’m just curious right off the bat how it got 760,000 miles on it in 2 years as it says in the beginning. I’ve ran my ass off in a truck but 760,000 miles in two years is some trucking I ain’t never heard of.
I agree its bullshit , not possible, unless you run that truck with a team of 3 ppl and only time you shut down is for fueling and oil change.Basically reset is on the road while truck is moving.Coast to coast pin too pin.
Demand Detroit is really good. Just demand it, when you buy a truck, when you vote, and everything. New rule, to be elected President you must have owned and driven at least 3 Detroit's. 6-71's would actually make America great again
I'm over a million with my freightliner and no oil leaks. I will upload a video to my channel to prove it. The only oil leak that I had it was the oil pan sealing.
Regular engine washes (as long as you keep the engine wash guys off the wiring harness) will keep it looking nice like that. Avoid hitting that wiring harness too much because you can get water in it and corrode them, and damn that's expensive.
I see alot of drivers who do not pretrip and get repairs done first off. I drive and first sign of a leak it goes into a shop. These guys crying about it let it leak til nothing is left then cry wolf. There own fault for not doing PM's and getting it fixed before it falls out from under them.
Why did I have to rebuild my 2012 DD15 at 667k miles then?😢 My rings got stuck, and cylinder started grinding against the piston until I lost compression in 2 cylinders.
lol i'm a diesel engine technician . This engine is Crap. Fuel System is a mess. it leaks everywhere . especially oil Cooler area. EGR and Dpf well is a Disaster . Keep Making it like that Detroit i never run out of Work.
That engine is a pretty exceptional case. I really like these engines, but honestly they all leak oil and often coolant and fuel also. Especially by the time they reach that mileage.
I have a 2001 Freightliner century, every week I was spending maximum 300 hundred,, now I got a Freightliner 2009 casacadia with DD 15 and I’m spending 450
Haha I can show you many cam frame leaks. Air compressor leaks. Oil mod leaks. The dd13 reminds me of the old oil slinging 8v71's from the 1970's. Also the plastic coolant lines leak. Was such a problem Detroit remade them as rubber but kept the plastic coupler which is what always leaks anyway. It runs a lit smoother then the red brand our company switched to. The dd platform doesn't do well in harsh environment per the us military. They still use the 60 series
Just because it’s that clean on the video doesn’t mean there’s no leaks. Maybe that driver who brought the truck in pressure washed the engine really good since he knew they were going to be working on it.
the only problems with these engine we had are suction tube to oil pump o-rings dry out and leak. lowering the oil pressure at idle speed, and fact that we had a dd15 with spun out #7 main bearing at 600k other then emission sensors and fuel problems not much i can think of
That is what caused the engine in my DD-13 seize up. I hope they fixed that flaw. We had several trucks, including some generation 1 and 2 DD-15s fail because of that. The company decided to scrap my truck (I miss my baby). Now I have to drive a crappy automatic KW T680.
Not leaking oil because all those gaskets got replaced between 4-500k most likely and that cylinder head is rusty which means it’s likely been changed as they’re painted originally.
Most don't develop leaks until past 650k. I have 860k on it and have fixed $7000 in seals in that time however that's less than 1 CPM so it's definitely not a deal breaker.
@@MickGallJr Detroit is the only engine manufacturer that didn't have a class action lawsuit against them for emissions issues. It's undeniable proof that the DD15 is the most reliable modern engine on the road. After 860K miles my emissions related repairs total $600 on two wiring harnesses.
80,000 lbs light load , they should check an engine in Canada that pulls 150,000 lbs. I have a dd16 600 hp 2050 torque. Almost all problems are DEF related.
I find it funny how they are claiming its all motor but don't give credit to the operator behind the use. A lot of issues with engine failure are due to lack of maintenance, or abuse in operating. Mechanics only know tear downs and maintenance procedures. The only thing they can use to see performance is a dyno.
just had one of these torn down because a main bearing cap was cast poorly and it cracked in half. Detroit sucks now...Loved the series 60, dd15 is shit. I'll never buy another detroit
My DD15 engine break down at 760000 km. The 2nd piston just fall apart hit the head and crack the liner, causing the whole engine needs to be rebuilt!!! That happened 4 months ago and the truck still sitting at one of the freightliner shop! They said the factory not providing the parts!!!!!! Is this real??? How come there is no parts????
I can put a 92 series engine w/ mechanical fuel rods & stay n the same arena lb for lb w/ any DD15 or 60series engine & w/ a little bit better horsepower w/ these 4cycles & stay up w/ there output, plus going w/ the lg lasting life span that will over come & exceed over these inline 6cyl. engines ! “That’s what I think” I’ve been around to see a few (couple) million milers DDA 2cyl mills & this thing never had the valve covers off until I ran across this beast.
My friend has 1.300.000 miles on his 2010 cascadia DD15 engine. It does consume lots of oil, but it’s still running. Mine got 912.000 miles 505 HP and I never ad any oil from change to change.
To mention that I do maintain it every 10.000 miles and I’m happy with it.
Great engine, good power and pretty good diesel economy.
I worked on freightliner for 7 years and not once have a seen a dd15 without any leaks. This was a rare 💎
They probably used the wrong oil (cheap 0 synthetic)
ive never seen an engine that clean...especially with 700k miles on it. i call shananigans.
Definitely if they use the same plastic sump as the Mercedes version of this engine, absolute trash, they crack for fun
@@aldworth33 You are right I've cracked one in a merc, clogged up sensors and power loss are to be expected also
ive got 1.1 mil miles on mine no oil leak on it
Eric Vig I do have Dd15 and it has 720 miles, drives just find, and has no leaks at all. I think the reason why is doing well is I don’t hour more then 35lb and I do my oil change every 10,000 miles, that’s is why.
Eric Vig. If you've never seen an engine that clean and with so little wear inside you obviously haven't worked on a Scania V8 with a million miles on it. They look like they have just been assembled at one million miles and are as clean inside as the day they were built. I admit this engine looks pretty good for the mileage but it's no better than I would expect from a Scania straight Six or V8 engine. They achieve a standard that very few manufactures can match and that's why their number one no matter what the terrain or load imposed on them.
I work on these engines a lot and if properly maintained you can reach 1,000,000 miles with ease.
Carlos is the man!!!
@@carbombtorres1761 Thank you for the compliment.
@@CarlosDieselElectric I'm very grateful for your help even though you are in Cali and I'm in Chicago. On Nov 1, 2019 my truck brokedown it was the fuel pump. I had no money after the towing to really spend on a shop repair. I jumped on your channel, I followed the instructions on the fuel pump replacement video and knocked that sucker out in 2 days. In my opinion I think I was back on the road faster then if I had taken it to a shop. I tell everyone about your channel when they ask me about repairs I do on my cascadia
Carlos Diesel Electric: What’s properly maintained besides regular oil changes ?
Josif Maracine 1) regular oil changes with quality oil and filters. 2) replace your oil suction module immediately if you notice oil pressure is fluctuating. 3) always have at least 1/4 tank of fuel or more to help ensure longevity of injectors and high pressure fuel pump. 4) perform valve adjustments at the correct intervals. This may sound like a lot but I have seen a few DD15’s with over 1,000,000 miles on the original engine and still going.
We will miss our fleet of 12.7 series 60s when they are gone. None of the new emission engines compare in terms of reliability. Detroit, Cat, Cummins, Volvo emission engines can all be found beside your favorite interstate puking their guts out. The pre-emission 12.7 was a true money-making piece of cast iron and steel.
WASJLS1988 I agree with you this is worse engine they made
1.5M miles on my 3406e. And making Detroits eat dust...
@@marceloevera2009 .. I got out of trucking because of e-logs. However, my Fitzgerald Glider had a 12.7. I had it turned-up to a 575, and 1850 torque. That was the forth 12.7 I had owned. I promise you, the 12.7's are the most economical, and reliable engines ever made. I would put the N-14 in a close 2nd place. It costs you more money to operate, and maintain that Cat, then it does for a 12.7 owner. As long as I kept my 12.7 at 65mph, I was rocking 7.0 mpg. I don't have anything against Cat motors, but the 12.7 is/was the best ALL AROUND you can own...
@@redsox2187 I wish you could see me laughing
@@marceloevera2009 I wish you could have seen me laughing at your maintenance bills v.s. my maintenance bills. Lets compare a 12.7 in-frame v.s. a Cat in-frame. Again, it's gonna cost you way more than the 12.7. When you own a truck, you should be business smart. I don't care how fast your Cat will run. Running 80 mph, isn't very business smart. Do you know very much about economics, financial planning, or being business smart?
I have a 2010 cascadia dd15 1.1 million miles original miles, replaced all outside components, and updates .Inside the engine i just replaced the injectors..bearings are at 90 % wear...and still going!!!
What advice would you give me I have 2015 dd13 cascadia with 700k miles on it runs fine no issues when should I trunk about a ewbuikd or I frame
@@TroyP20 if you can afford it replace the whole engine at 800 900k it will cost you around 50k on an engine swap with extended warranty 3 years 300k miles parts and labour nationwide ask at an iland detroit dealear about prices NOT Freightliner dealer!
I do have to say. I've been working on the DD series for 6 years at Freightliner. The engine would not be that clean for sure. Cam frames, oil/coolant modules, crankcase vapor separator, and air compressors are the most common leaks. That's the biggest thing I fix is oil leaks. Very few valve cover, front/rear main seals, and rear structure gaskets. I've seen plenty with holes clear through the block for no reason, some had reasons due to neglect. Over all the performance of a 495 hp DD13 to a 515 hp 14.0 S60 the DD13 will run circles around the S60. DD15 is tuned for fuel economy so it doesn't pull as aggressive as a 13 or 16, unless you get one with 561 hp then it will pound the ground! If your looking at getting a DD series engine here's some tips. Got service history if possible. A dealer should be able to get the claims history. Around 450-500k miles you'll see came frames leaking, engine sensor harnesses will fail due to wires chaffing inside the loom, and oil pickup tube orings causing low oil pressure at start up. Dpf's will usually last 450-600k depending on operating loads and such. SCR cat will last around 650k unless a previous failure burned them out or poisoned them. Early DD series (08-12) had injector cup orings problems, but most all of them would have failed and been repaired by now. The internal shots in the video are exactly what I've seen in the field. I pulled one down that had 850k miles and had a wrist pin retainer fail. All the bearing looked brand new. Liners and rings had wear but plenty of life left in it. These bearings are very sensitive to dirty and low oil pressure. They can scratch and be fine, but if something big enough gets in the material flakes off, or metal to metal contact, and then its by by rod or main bearing. These have spattered bearings, not multi-layer. I do like this engine. Its easy to service and maintain, but parts are $$$$ and parts availability is still a problem 10 years after introduction. It's still a machnical thing made by humans and maintained by humans, so you'll still have problems here and there. The things can't handle lack of care like the S60 did, but you can overheat them to 265*F and they'll be just fine; dang belt driven water pump. I'd like to hear from the Euro truck drivers about the equivalent om470, 471, and 473. Is there an om472? Any questions just ask.
Marnin Gehman we have a bunch of m2's with dd13's in them. oil and coolant leaks are so hard to keep up with in them. a handful of them get to 500-600k and liner seals on cylinder 3 or 4 start leaking coolant into the oil. 2016 dd13 with front seals and air compressor oil leaks and coolant lines leaking. it's amazing how much these things are in the shop.
I have 2013 cascadia DD15. 600k miles. I have buildup around the oil housing some of the bolts have something like acid from a battery. Best way I can describe it. It's white substance with some color from what I think is from the coolant which is red.
Is that something I should be worried about?
I also do have low oil pressure warnings that comes and goes when I start the engine. I push the accelerator and it stabilizes before it shuts off. I also have rough idling, which I hear could be fuel pump or quantity control valve. Any advice is greatly appreciated. I'm wanting to do some preventative maintenance.
JZ Look around ahead of the oil filter module for a coolant leak blowing back. there is a blue coolant hose at the front of that for the egr cooler that leaks, or the line from coolant reservoir, or the crossover hose. supposedly the oil pickup orings were fixed in 2013 but I don't believe it with what we've been seeing. replace the oil pickup manifold, the four orings on the manifold to pump connection. we change oil pumps while we're at it too, but some places don't.
JZ I forgot to go back to your post. a rolling idle, especially at that mileage will most likely be a quantity control valve.
Excellent comment bro
Three weeks ago i went out on a road service call when the driver said his DD15 went pop & shut down on I-15. Right before I got to him I stopped & picked up the connecting rod lying in the middle of the road. #2 rod went out the left side of the block, bounced on the road then knocked a hole in the power divider front cover before taking a line off a trailer brake can. It had 36k miles on it. Oh & I really love the location of the air compressor too, on the left rear behind the fuel system.
and that lovely reverse switch ontop of the gearbox ugh!!
the dd15 is a real piece of shit
Wow. What a service call. Here comes the hook. All engines run good when they run good right before they say f-it.
No motor would do that if it’s maintained , u less it was a one in a million bad motor , bullshit
@@glenalguire6960 Low mile failures are more common than you think. Last week I went out to a 24 Mack Anthem in Cokeville Wyoming that had a low coolant shutdown. The plastic expansion tank was split open at the seam. The company had me drive to SLC for a new tank & go back out there & replace it. After poring 14 gallons of coolant into it I figured we had another problem & it was all in the oil pan. With a $3600 road service bill it needed a hook back to Mountain West in Utah. It had 42k on the clock.
the problem is never the engine its always an emission system problem. my truck has broke down twice and both times were emission. the nox sensor and a def injection block.
def injection block you add in fuel HOWES DIESEL TREAT DIESEL CONDITIONER AND ANTI-GEL .same issue I had now days no more
@@chackojayakumar9433 Is this still the case?
We have problems with smoke emissions on Mercedes Actros too. And shitty wiring
This is a common issue to all truck brands.
It doesn't have to do anything with the engine. It's a separate system.
Just wait for SCR filter to get clogged around 350k. Make sure you have ready 7 to 10k to replace it.
Yes, most likely your issues with the DD platform will be aftertreatment related. That has been my personal experience until I had "the cancer removed " 🤫
The three wreckers I drive all have pre emission 12.7 liter 60 series Detroit's. little to no problems. love the engines
I have 960k on my dd15 and never have had a major repair and never been towed. Lifetime average mpg 8.6. My truck has amazing power. I run only the western US and hardly ever downshift on grades.
what a liar prick u are buddy
@@americantrucking6843
I've been driving almost 3 decades. If you have problems it's probably because you take care of your equipment
@@americantrucking6843
You accuse me of being a liar and you've never met me. You have shown me and everyone else what kind of person you are
i m 100% sure they pressure washed before making this video.. 60 series the best
I agree but in the trucks 2009 - 2019 there is no more serie 60
They for sure pressure wash the engine so they can inspect any oil leaks. Standard procedures prior to inspection.
@@marioguerrero3875 2009 theirs still series 60 I have it in mine no def yet in 2009
The thing doesn't even have dirt on it... dead give away they power washed it.
I have a 2015 Detroit DD16 with 284600 oilfield miles and 13,200 hrs on it. Haven't touched anything but for P.M. service and belts. Never have had any DPF filter issues. I use lucas fuel additive every other fill-up and Lucas Diesel DPF DEEP CLEAN every 6 weeks.😎👍
760K on a maintained big motor isn't anything special. Start checking after a million.
The forgot to mention the 235 times this engine went to the shop for emission related issues . I'll take a series 60 with 500k over a brand new DD15 any day and twice on Sunday .
Dan R so true nothing beats a 60 series
Dan R I agree to a point. The EPA07 DDEC 6 Series 60 was an abomination compared to the EPA07 DDEC 6 DD15. Comparing the engine platforms on their own without aftertreatment in mind, the DD15 is superior.
karim grant dd60=amazing engine
Really , never seen one last that long
I have met a lot of a- holes in my life ,but have you not got the courage to not hide behind a nom-de-plum ?, most credible people have!!!!
This teardown and inspection is not at all biased lol, in my experience if an engine with any miles on it doesn't leak it's because there isn't any oil in it. Especially these new regen engines the heat cycles are insane. ice cold egts 80% of the time to meet the unrealistic nox levels, and dumping raw fuel in the exhaust to burn something that is already burnt. That is a recipe for failure in any engine, that engine was definitely cleaned inside and out for this ADVERTISEMENT before hand, also love how that TECHNICIAN dragged the conrod along the cylinder wall!
Exactly right
I'm sure it depends on the oil that is used and the frequency of how often it's changed and what fuel you run, not to mention HOW it is driven!
Yes an owner operator is generally gonna take better care..but these fleet trucks are generally trashed buy the driver.....the dd15 is a good engine...not sure why I made my original post. Mustang been drunk or something.
DD15 is a headache!!!!
12.7 THE BEST !!!!
Polo Oseg dd13..?
These so called DD13 , 15, and 16’s are actually Mercedes Benz engines in disguise. Series 60 is the true Detroit
I love Detroit engine is the best engine out there 🔥
We have a DD on blocks right now with spun bearings, rod and mains.
I have 750k on mine and have replaced all my injectors, egr cooler, radiator, starters,alterators, multiple sensors of all kinds,Sam computer, and now in shop needing a 1 box. NOT FLAWLESS AT ALL. Maintained regularly with synthetic oil Lucas and motorkote. Truck even has APU for low idling hours.
Mines just got a 1 box I have 696 on it . I bought used had it for 11 months
The series 60 was a great engine
I have been a diesel mechanic for nearly 50 years, worked on a lot of Detroits and EMDs .Very impressed , always liked those engines.
Laurie Clews thanks for your opinion on the topic
Laurie Clews I’m sure they keep you in business.
What mileage should you look for if you looking to buy one?
Mucleboy01 the mileage doesn’t matter, it’s all about the condition of the engine.
9914life how so you know what condition an engine is in when you go to buy a truck?
Detroit Diesel, oiling down roads since 1938.
You know when your out of oil in your Detroit when you stop leaking a puddle on the ground everywhere you go.
@@dominicturner2055 3406e,s60 and n14....all of them leak very bad...
This is a Mercedes
🤦🏻🙋Guilty! Every time I get a PM the Mechanics tell me I have an oil leak. I tell them no kidding its a Detroit. Show me one that doesn't leak. My truck has been leaking since I got it at 500k miles I'm at 950k miles and have done absolutely nothing to the engine, it's still running strong. Detroit is a good leaky engine only problem is the emissions.
can somebody please buy him a better flashlight please
Nancy Gonzalez nancy if thats really u in the picture i have a 9 inch flashlight for you darling
De donde eres?
Nancy you it the flash light the spectacles he wearing lol
I’ll keep the 12.7. you can keep that abomination.
12.7 all day everyday
only good thing when you have a dd15 is they never rust .couse they leak like crazy
I agree with you chris
I've had mine for almost 2 years and no leaks.The trick is to keep the pan seals pliable so they dont leak.I use Lucas oil stabilizer to keep the seals pliable.
That's a perfect steam clean engine
When he pulled the piston out of the bore, the lower con rod dragged horizontally along the cylinder liner.
my cat c15 has 1.1 million no rebuild needed yet
Arnt you bloody lucky.........
One of the very few
Safet Hamzagic when you go to rebuild there wont be much left to rebuild 🤣🤣
CAT C15 is the twin brother of the Detroit 60 series. They were both built to last.
@@yosefshawarma3739 How dare you sir! The Detroit at most is a distant step cousin...lol. Twin brother...huh, the nerve of this guy! Lay off the narcotics fella😴
Roger Penske brought a new mindset to Detroit Diesel.
Really depends on how well engines gets service. This engine looks like was taken care of.
I have a 2013 Freightliner cascadia DD-15 with 1,100,000 + miles on it. Motor still to this day has zero blow-by and has never used a drop of oil in between 15,000 mile oil changes. I've definitely had oil leak issues through the years. Oil pan gasket, turbo oil line, fuel rail, etc. Emissions on the motor have not been that bad. Particulate filters last around 350k on average. O-rings on oil pump will definitely let you down. I've changed mine twice. Lost all oil pressure around 1 Mill due to oil pump pick up or something another had rods and mains replaced. Overall it's been a great engine would definitely buy another.
By 840000 miles on my D15 had to get a overhaul. After the in-frame was don't. It still have 4 leaks I needed to get taken care of. Most of the time it's been a pretty solid engine. Even though that was the second in-rame that got done.
@TheOneFromFuture yes the were. My truck was leaving big oil spots everywhere. By the time I got it fixed it was losing a gallon a day. Cost me another $6000
@TheOneFromFuture it hasn't leaked oil since. But sometimes I pull into a relatively clean spot. And I'll see a oil leak and panic. Until I realized that it wasn't from my truck
I have been a diesel mechanic /marine engineer for 47 years . I was trained at Rolls-Royce in New Zealand . I would put that engine back togather and return it for anouther 700.00miles
DD16 Owner operator here 180000kms on mine trouble free very good motor
Mario Slipac that was 2 years ago. How do you like the engine now?
This is %100 unrealistic.
I know it's crazy
I have 2014 dd15 engine with 725k miles. It has a lot of leaks, but I should say its been reliable on the road.
@@murutchan leaks from where?
@@shatteredsquare 1. Coolant leak from coolant pump 2. Oil leaks from a lot of places. ( crancase filter, fuel line, from bottom)
This completely false I've never seen a diesel of any brand thats perfectly clean with 0 oil leaks, and Detroit is known to leak something
Dude said it himself - "it normally should show signs of leakage." This unit did not. Well, that's the case when you maintain a truck well. It's normal to have no leaks after they been repaired.
Those pistons looked clean as a whistle now good motor solid as a rock
Can you guys post different jobs you do on Freightliner DD15 engines ? Example, how to remove / replace the DPK unit.
Also, can you post videos on what types of services to be done on Freightliner DD15 engines at 100,000 miles, 300,000 miles, 500,000 miles, and 900,000 / 1 million miles.
I’d appreciate it. Thanks.
Simple fact, nothing is made to last nowadays and that INCLUDES commercial truck engines
*****
I guess you mean a Series 60. Well wouldn't know what to do with it since I don't have a rig.
But I drove them several years ago when i was in the Army. I drove a 977 HEMTT with a
8V92 in it.. But I just notice everything made nowadays (like cars) are not made to last. I
own a 2000 Jeep Cherokee in good condition,
and all of a sudden the past weekend, the ECM goes out on it, it is going to be about 1500 or more to replace it. Well why did it go out in the first place? I think it was designed an engineered to last a certain period of
time and then fail, ensuring that I go pay the
mechanic a visit. Of course I hate it because I liked and remember the days when shit was simple and I did all my own repairs. And of course they are doing the same thing with big trucks. I see all this polllution shit these new engines are required to gave, like the DD16, etc. All I can say is GOD DAMN THE 21ST
CENTURY !!
I disagree with the assessment that engines aren't built to last anymore. I work for a Detroit Diesel dealer and have noticed over the years that all of the mechanical work is drying up. During the 2-stoke days the engines just didn't last and needed periodic rebuilds. During the Series 60 days you would always have tons of rebuilds and bearing replacements, but they were lasting longer then the 2-strokes. Now with the DD engines, they almost last the life of the truck (mind you a lot of the trucks are throw-away trucks after so many miles now, like the Cascadia). A DD with a million miles without a rebuild is common, a S60 is rare, a 2-stroke extremely rare or even impossible.
DonKingKong2020 maybe it's because the dd series is so expensive to rebuild. Most people just buy another truck
The Cascadia is a throw away truck? WTH?
Marcus Jones that's what I was thinking? I paid $70,000 for mine. I don't plan on throwing it away
OIl quality and correct oil change intervals are super important to main bearing wear, and wear on other components. I know of a Gen 2 ISX-600 (non egr) that completed 2 million km's hauling 65,000kg B-double application on long distance interstate.......it was using Fuchs 10w-40 full synthetic oil, 20,000km oil changes......and was still providing power in spec, oil consumption minimal and excellent fuel economy. It only required one valve lash adjustment in its life, and mechanic commented that it was almost not necessary, and all the valve train looked new at 1.5 million km.
Well when you think about it if you maintain an engine properly in theory it should look like this as that's how it's meant to be maintained
I call this test an oil test. The oil has done a fine job. What oil was used in this engine. I would like to know
I worked for a Freightliner Dealer. There's no way a Detroit engine can be this clean. It's been washed... 🤔
They can keep it. I just rebuilt my 2007 14 liter 60s.
Its loud. But gets 6.5 mpg with a full load.
It's still profitable and cheap to work on.
16k for a full I frame at the dealer.
On this engine u get just an emmsions system for that money..
I’ve worked on all types of Diesel engines for the last 50years and have to admit those parts he removed from that engine were in excellent condition and could have been rebuilt,I would put new bearings shells and piston rings in just to be extra fussy,having said that it’s nothing I would expect to find in a Scania or Volvo engine which have done horrendous mileage’s. Cat powered vehicles we run were exactly the same,brilliant longevity and reliability from all three manufacturers. Detroit Diesel made brilliant 2stroke engines which I’ve seen run for ever in loading shovels and plant machines so it’s only to be expected that the new engines are good.
Stop lying to people, I spent over $10,000 last year alone on Emissions problems. Nox sensors, EGR parts, DEF parts, and all other types of issues. I'm sick and tired of it. I want to know who the idiot was that came up with this new clean Air crap. It's nothing but a headache, and it's extremely hard to run a business when you're in the shop every three weeks with after treatment issues
Emissions issues are not engine issues. Two completely separate categories.
California demonrats came up with emissions under their CARB board. You can thank them for it.
What was the mileage on your truck?
I think people are missing a key observation from the tech. He is mention where he expects leaks and wicking to be. So my take is they're amazed on a specific engine they're make a video. This is possible with a good operator/driver behind the helm.
In the oilfields you are lucky to get a Detroit- MTU to hold up! 8 years in the industry and if it doesn't say cat or Cummins it won't hold up to the abuse!
Proper maintenance and care will treat you well.
1.060.000 miles on my DD15. No major issues. Some coolant lines, coolant pump, clutch at 870k, fuel quantity valve over a million....that's about it.
16-20k oil change and never start driving if oil temperature below 170 F.
Hey Apostol, how much milage are you at now? Anything else come up to your dd15 since the post? Thx
@@bhaydenca 1294635
No engine issues. I replaced transmission, automatic, and after a week i got some harness issues collaborated with some transmission software issues.
It took three months to be fixed
Engine software was not matching the new transmission software.
Deleted DPF. They were developing new engine software and i had to wait for it.
Runs perfect. The new engine software loses the peak power but i gain in fuel consumption. Stays on 7mpg which is very good for me at this mileage.
Did a cylinder head on a 2008 with 1.7M kms as the intake temp sensor had failed and a piece got stuck in intake valve and burnt it and while we were at it pulled oil pan to check bottom end and replace pick up oil seals and it looked exactly like this does, oil changes every 20K probably helps and it runs on Delvac Full Protection 15w40 fyi
No oil leaks? Please... you pressure wash it before or after removal from chassis? Cascading oil leaks from the oil filter/cooler housing and rocker box gasket after 250k on every. single. engine. period.
I drive an International 9400I with a Cummins ISX 435 horsepower no def or regen only EGR had to replace that twice. Otherwise a very dependable engine
1.2 million miles and so far still going strong
Had to replace a cam shaft as well the one that operates the valves not the one for the injectors
As a fellow driver, I’m just curious right off the bat how it got 760,000 miles on it in 2 years as it says in the beginning. I’ve ran my ass off in a truck but 760,000 miles in two years is some trucking I ain’t never heard of.
I agree its bullshit , not possible, unless you run that truck with a team of 3 ppl and only time you shut down is for fueling and oil change.Basically reset is on the road while truck is moving.Coast to coast pin too pin.
You know that water plastic line running in front of the filter housing has been replaced at least twice
ive gotta make my engine known to dettoit for 1.1 mil miles no oil leaks and still running.Oh and its a 2010 model!!!
How many engines did they pull apart before they found one like this
Hundreds
Demand Detroit is really good. Just demand it, when you buy a truck, when you vote, and everything. New rule, to be elected President you must have owned and driven at least 3 Detroit's. 6-71's would actually make America great again
Yeah pressure washing an engine works wonders. I'll stay in the 60 series camp, thanks
Great engine I prefer DD13 mines has 800,000 and is just as clean never broke down on me 🤞 and runs better than when I got it
I'm willing to bet they edit the pressure wash part of the video!
Haha i love how it has " no oil leaks"
I'm over a million with my freightliner and no oil leaks. I will upload a video to my channel to prove it.
The only oil leak that I had it was the oil pan sealing.
This engine is good with out dpf filters
"There's no road grime or anything attached to the engine" Hrmmmm
Regular engine washes (as long as you keep the engine wash guys off the wiring harness) will keep it looking nice like that. Avoid hitting that wiring harness too much because you can get water in it and corrode them, and damn that's expensive.
This engine leaks like a mf. I work for freightliner and 70% of repairs are for leaks on that engine
Brenden Green what mileage should you look for if you trying to buy one??
@@mucleboy0151 price wise or before shits start giving out? Price wise 400k and up.. shits giving out 600k
Thats why they will never rust always covered in oil from somewhere
@@fredc8618 oomkoo
I see alot of drivers who do not pretrip and get repairs done first off. I drive and first sign of a leak it goes into a shop. These guys crying about it let it leak til nothing is left then cry wolf. There own fault for not doing PM's and getting it fixed before it falls out from under them.
Why did I have to rebuild my 2012 DD15 at 667k miles then?😢
My rings got stuck, and cylinder started grinding against the piston until I lost compression in 2 cylinders.
I have a 2013 cascadia with a DD13 940k miles on it ..its been very reliable but already had most gaskets replace due to oil leaks
I also have a cascadia 2015 dd13 with 700k miles on it. When should I considered get a rebuilt or Inframe
TroyP20 I would think till you have some sort of issue with it ...if you take care of it probably after a million miles
Milton Gonzalez thanks for the fast response
TroyP20 my pleasure
Detroit Engine: I’m the most powerful one. CAT engine: Hold my beer.
You can build any engine to the power you want.
lol i'm a diesel engine technician . This engine is Crap. Fuel System is a mess. it leaks everywhere . especially oil Cooler area. EGR and Dpf well is a Disaster . Keep Making it like that Detroit i never run out of Work.
dd15??? never ever again!!!
That engine is a pretty exceptional case.
I really like these engines, but honestly they all leak oil and often coolant and fuel also. Especially by the time they reach that mileage.
What kid of oil and intervals was this engine doing ?
Dude I drive a 2015 evo DD15 and the engine has 360k
And it ain’t clean like that
🤣🤣🤣🤣
How did they maintain this engine?
I have a 2001 Freightliner century, every week I was spending maximum 300 hundred,, now I got a Freightliner 2009 casacadia with DD 15 and I’m spending 450
They are laying those DD15 700.000 miles are done some of then 600.000 done
Mercedes-Benz OM 473 Diesel Engine. cough cough Detroit???????? Please....
Detroit Diesel is a part of MTU and Mercedes, it belong together
Haha I can show you many cam frame leaks. Air compressor leaks. Oil mod leaks. The dd13 reminds me of the old oil slinging 8v71's from the 1970's. Also the plastic coolant lines leak. Was such a problem Detroit remade them as rubber but kept the plastic coupler which is what always leaks anyway. It runs a lit smoother then the red brand our company switched to. The dd platform doesn't do well in harsh environment per the us military. They still use the 60 series
My DD15 has under 500,000 miles ...why is it leaking oil from the head gasket?? Wtf?? Is the coolant filter neccessary??
I’m looking to buy a freightliner cascadia what years would you say is the best dd15 far as reliability and what years would you stay away from
Just because it’s that clean on the video doesn’t mean there’s no leaks. Maybe that driver who brought the truck in pressure washed the engine really good since he knew they were going to be working on it.
the only problems with these engine we had are suction tube to oil pump o-rings dry out and leak. lowering the oil pressure at idle speed, and fact that we had a dd15 with spun out #7 main bearing at 600k other then emission sensors and fuel problems not much i can think of
That is what caused the engine in my DD-13 seize up. I hope they fixed that flaw. We had several trucks, including some generation 1 and 2 DD-15s fail because of that. The company decided to scrap my truck (I miss my baby). Now I have to drive a crappy automatic KW T680.
Should do an interview with the owner
this is a mercedes designed engine not detroit. note the timing gears in the rear like volvo and pacar and mercedes euro engines
Not leaking oil because all those gaskets got replaced between 4-500k most likely and that cylinder head is rusty which means it’s likely been changed as they’re painted originally.
I put 560k on a dd15 in a 2016 Cascadia, only leak I ever had was the oil pan gasket and that's a simple fix that was warranty covered.
Most don't develop leaks until past 650k. I have 860k on it and have fixed $7000 in seals in that time however that's less than 1 CPM so it's definitely not a deal breaker.
@@gsxr1189 I agree. IMO the DD15 is one of the best engines ever made, sure there is the emissions garbage but, it gets better every model year.
@@MickGallJr Detroit is the only engine manufacturer that didn't have a class action lawsuit against them for emissions issues. It's undeniable proof that the DD15 is the most reliable modern engine on the road. After 860K miles my emissions related repairs total $600 on two wiring harnesses.
I have a 12.7 series 60 luv it
15 years experience and never have driven a Detroit that didn't leak. If it doesn't leak it's not Detroit Diesel.
80,000 lbs light load , they should check an engine in Canada that pulls 150,000 lbs. I have a dd16
600 hp 2050 torque. Almost all problems are DEF related.
DD13, DD15 make the best boat anchors. JUNK!!
I have one problem whith the motor dd 15 detroit..no starting..need help
They don’t show oil leaks if you steam clean them before you pull them out they don’t even have road grime on the engine
I need a DD15 engine I am in Stockton CA my DD15 engine break dawn please help
I find it funny how they are claiming its all motor but don't give credit to the operator behind the use. A lot of issues with engine failure are due to lack of maintenance, or abuse in operating. Mechanics only know tear downs and maintenance procedures. The only thing they can use to see performance is a dyno.
My 14L has almost 1.2 million miles on it and runs great. I will say if its not leaking oil I'm sure its low.
just had one of these torn down because a main bearing cap was cast poorly and it cracked in half. Detroit sucks now...Loved the series 60, dd15 is shit. I'll never buy another detroit
My DD15 engine break down at 760000 km. The 2nd piston just fall apart hit the head and crack the liner, causing the whole engine needs to be rebuilt!!! That happened 4 months ago and the truck still sitting at one of the freightliner shop! They said the factory not providing the parts!!!!!! Is this real??? How come there is no parts????
I can put a 92 series engine w/ mechanical fuel rods & stay n the same arena lb for lb w/ any DD15 or 60series engine & w/ a little bit better horsepower w/ these 4cycles & stay up w/ there output, plus going w/ the lg lasting life span that will over come & exceed over these inline 6cyl. engines !
“That’s what I think”
I’ve been around to see a few (couple) million milers DDA 2cyl mills & this thing never had the valve covers off until I ran across this beast.