I heard new ones have better performance. Driver who driven the c15 and Cummins. Like the Cummins better. They don’t like how paccer climbs the hills. If the truck taking to long to climb hills in long route ca to ny in a round trip there is almost 24hrs difference between paccer and Cummins 500hp. Less stress on the driver and less time on the road
Thank you for describing your fleets experience with the late 2010s Paccar MX13 and Cummins ISX15 over the road truck engines. The continues issue of breaking Diesel fuel injectors in the 2010s MX13 engines is a reliability issue I hadn't know about before. Other comments below state their experience with MX13 engines in their fleets has been hit or miss. Your experience really gets into some of the long term issues when the MX13 engines over 400,000 miles they start to have after-treatment emissions codes popping up causing serous derating of the engine's power. Having long term highly reliable after-treatment systems is now more important than long term engine reliability. The big clincher is your statement that the MX13 trucks have no long term resale value as their durability puts then out-of-service and they can only be repaired at the Paccar dealer with poor parts availability; whereas, the Cummins has many non dealer and knowable mechanics with good, but expensive parts availability. One has to wonder why Paccar doesn't have a 15 liter MX engine i.e. MX15. That is a large gap in their engine portfolio. Maybe there is just not enough demand to make it worth while to develop a MX15, but it maybe the MX13 is at the very limit of strength for the power it is putting out and everything about it is designed with that in mind so an MX15 would push hit-or-miss reliability into no reliability. It appears the MX13 for typical fleet use in low stress service is an above average performer in fuel economy and expense, just don't keep a 2010s MX13 past 400,000 miles when the after-treatment systems give up. In 2022 it is not a given conclusion that the Diesel emissions system can be largely defeated to gain engine reliability and fuel milage. The Paccar MX13 a smoother, quieter, significantly lighter and more fuel efficient engine than its Cummins counter part and costs less up front with longer service intervals.
Buy whichever you want. keep it at 65 mph. Know your drivetrain for which application. marry your mechanic. Oh and delete that dpf def asap. I owned both cummins made it to 700000. Paccard made it to 900,000. Detroit dd15 1018200 changed 3 injectors. Do preventive maintenance or pay it in taxes and worry about engine problems.
Paccar = junk - at least in the 2015 to 2019 year range. I drove three different Pete 579's (in two years) with the MX13 and 10 or 12 speed autos and the damn things would NOT stay out of the shop. The driveline was constantly throwing engine codes, check engine lights (yellow and red), and one of them even broke a camshaft!! That truck had just under 300,000 miles on it when it broke, and it was in the shop in Ontario CA for a solid month while they waited for the parts and then fixed the engine. BTW, the engine has to be lifted off the frame to replace the camshaft, and when it goes, it takes out cylinders, lifters, injectors, pistons, and just about anything else in the block. Don't even THINK about buying a Paccar engined truck (new or used), spend the extra money and get the Cummins - you'll make it back in uptime!
That's good what year is the truck. I had hard time keeping a driver in the truck. Driver leave due unable climb hills with speed, emissions and injector issues.
@@crocket1971 it won’t outlive an n14, or a x15. Everyone says isx are unreliable I’ve had nothing but good experiences with the isx I have an isx powerd freightliner 122sd and it’s been a great truck 850,000 miles and I haven’t replaced hardly anything on it except for a valve cover gasket and a radiator hose. She’s been a good one, my freind bought a dd15 powered cascadia and it’s been very unreliable. And the paccars in our fleet have been hit or miss, some are good they don’t have power but the have fuel economy. Others have lived in the shop. Best heavy haul truck we have here is an old Pete 379 with a 15 speed and a n14. She’s a hog when it comes to power and fuel economy but she’s been a damn good one. I love my 122sd but that old Pete runs when the 122sd doesn’t. If I run close around Kentucky I’ll use the Pete if I’m running more that 450 miles I break out the 122sd.
N14 is king but in new America where the government force or tell manufacturers what to build, they don’t care about the customer ( truckers) anymore, we are screw. Welcome to communism.
My company luvs paccars oddly enough 😮
I heard new ones have better performance. Driver who driven the c15 and Cummins. Like the Cummins better. They don’t like how paccer climbs the hills. If the truck taking to long to climb hills in long route ca to ny in a round trip there is almost 24hrs difference between paccer and Cummins 500hp. Less stress on the driver and less time on the road
Thank you for describing your fleets experience with the late 2010s Paccar MX13 and Cummins ISX15 over the road truck engines. The continues issue of breaking Diesel fuel injectors in the 2010s MX13 engines is a reliability issue I hadn't know about before. Other comments below state their experience with MX13 engines in their fleets has been hit or miss. Your experience really gets into some of the long term issues when the MX13 engines over 400,000 miles they start to have after-treatment emissions codes popping up causing serous derating of the engine's power. Having long term highly reliable after-treatment systems is now more important than long term engine reliability. The big clincher is your statement that the MX13 trucks have no long term resale value as their durability puts then out-of-service and they can only be repaired at the Paccar dealer with poor parts availability; whereas, the Cummins has many non dealer and knowable mechanics with good, but expensive parts availability.
One has to wonder why Paccar doesn't have a 15 liter MX engine i.e. MX15. That is a large gap in their engine portfolio. Maybe there is just not enough demand to make it worth while to develop a MX15, but it maybe the MX13 is at the very limit of strength for the power it is putting out and everything about it is designed with that in mind so an MX15 would push hit-or-miss reliability into no reliability. It appears the MX13 for typical fleet use in low stress service is an above average performer in fuel economy and expense, just don't keep a 2010s MX13 past 400,000 miles when the after-treatment systems give up. In 2022 it is not a given conclusion that the Diesel emissions system can be largely defeated to gain engine reliability and fuel milage. The Paccar MX13 a smoother, quieter, significantly lighter and more fuel efficient engine than its Cummins counter part and costs less up front with longer service intervals.
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The mx13 has an engineering edge, its just hindered by the emissions crap.
I heard new mx13 are a lot more reliable.
Buy whichever you want. keep it at 65 mph. Know your drivetrain for which application. marry your mechanic. Oh and delete that dpf def asap. I owned both cummins made it to 700000. Paccard made it to 900,000. Detroit dd15 1018200 changed 3 injectors. Do preventive maintenance or pay it in taxes and worry about engine problems.
I had a lot of problems with deleted truck. I now believe that it’s better get rid off before it’s time to delete it.
Think ill go western star?
Western star good truck with dd15 engine.
Isx engine is prone to injector cup failure (antifreeze in the fuel separator)
The fix is a new cylinder head $10,000
DD15 same problem but way cheaper fix, you just change the injector cups o-rings that's it, i paid like $1200 parts and labor
Cummins are very expensive
At least get basic facts or information correct before making a UA-cam video, paccar and max force are not even the same engine
Good to know
U can't give away a used trk with a used paccar engine, my peterbilt dealer has 50 used 579s from prime no one wants them...
@@morrisdennis very true because local mechanics don’t now how to fix them and parts availability issues.
Paccar = junk - at least in the 2015 to 2019 year range. I drove three different Pete 579's (in two years) with the MX13 and 10 or 12 speed autos and the damn things would NOT stay out of the shop. The driveline was constantly throwing engine codes, check engine lights (yellow and red), and one of them even broke a camshaft!! That truck had just under 300,000 miles on it when it broke, and it was in the shop in Ontario CA for a solid month while they waited for the parts and then fixed the engine. BTW, the engine has to be lifted off the frame to replace the camshaft, and when it goes, it takes out cylinders, lifters, injectors, pistons, and just about anything else in the block.
Don't even THINK about buying a Paccar engined truck (new or used), spend the extra money and get the Cummins - you'll make it back in uptime!
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Max force is NAVISTAR buddy
Good to know
Sounds like your had. Bad experience what types of issues did you deal with
Yes lost a lot off money on the paccer engine
My father has a Kw with a Paccar Mx-13 with 1 million 300 k miles ,later the people said that they are bad 🤷♂️🤷♂️
That's good what year is the truck. I had hard time keeping a driver in the truck. Driver leave due unable climb hills with speed, emissions and injector issues.
what do you think about the dd15
Very good motor. Parts are much cheaper. Some Parts are even available for this motor on eBay and Amazon
Dumb mechanics dont know how fix Paccar engine thats they like Cummins over Paccar, overall Paccar engine quite more fuel efficient last longer
new pacer are very quiet and good on fuel mileage 👍
3 months back order on a lot of Cummins parts now and it’s getting worst not better
it could be due to COVID. I hope you get your parts soon. may be Try looking up the parts online
Skip the PACCAR and the ISX. Get a X15 or an older truck with the N14.
I think the Paccar MX is more innovative
@@crocket1971 it won’t outlive an n14, or a x15. Everyone says isx are unreliable I’ve had nothing but good experiences with the isx I have an isx powerd freightliner 122sd and it’s been a great truck 850,000 miles and I haven’t replaced hardly anything on it except for a valve cover gasket and a radiator hose. She’s been a good one, my freind bought a dd15 powered cascadia and it’s been very unreliable. And the paccars in our fleet have been hit or miss, some are good they don’t have power but the have fuel economy. Others have lived in the shop. Best heavy haul truck we have here is an old Pete 379 with a 15 speed and a n14. She’s a hog when it comes to power and fuel economy but she’s been a damn good one. I love my 122sd but that old Pete runs when the 122sd doesn’t. If I run close around Kentucky I’ll use the Pete if I’m running more that 450 miles I break out the 122sd.
N14 is king but in new America where the government force or tell manufacturers what to build, they don’t care about the customer ( truckers) anymore, we are screw. Welcome to communism.
But our state doesnt let you keep those old engines so skip your n14@@ttk-stephenfox1507
Agreed
Paccar engines will destroy u...
This video audio sucks
Lol ya it does. Sounds like he’s whispering and you hear him clicking on his keyboard louder than his voice
Mic issues made another one
You have no clue….
Good to know
Cat
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I think international motor is best
😂 ur funny
International motor !!!!!!!??????😆😂
Junk
They haven't made one yet
lol 😂