Is MDS Damaging Your HEMI? The Answer May Surprise You!
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- Опубліковано 30 тра 2024
- I feel like MDS has been unfairly made the culprit for the lifter failures we see on Gen 3 Hemi engines. In this video I explain exactly how the system works, and why it's not to blame.
Link to VVT operation video:
• Hemi VVT Explained! Ho...
Link to video on how to get MDS to still work even with a high volume oil pump:
• The BEST Prevention Fo... @23:43
0:00 What is MDS?
1:52 How does it work?
7:50 Does MDS cause lifter failure?
8:49 Lifter oil flow
11:40 Does high oil pressure damage MDS?
12:41 What you don't want to do!
16:00 What else would you like to see? - Авто та транспорт
Let me know if you like this sort of video, and what system would you like to see me cover next? Thank you for watching!
How about traction control and ABS
A video on cam duration vs lift and lsa . What is higher duration vs longer duration and it’s effects on performance. High lift vs low lift , LSA adjustments , and how to determine the correct size cam for a daily driver vs a track car. Thanks
How about a video on common LX car problems such as suspension and driveshafts?
I would be quite interested in seeing the hemetic. The cams removed the lefers, replaced everything replaced gone wrong. What caused it to go wrong? I believe push rods were. Put in properly left on a shelf and bent the push rots. How can this possibly happen
@@gordonleakey6830 he has done videos about this, look back at the playlist and you can find them.
As a recently converted Chevy guy I'll tell you that your videos are fantastic and I've referenced them many times while repairing my 300C with a 5.7 after it dropped 2 valve seats. You're great at breaking down the system and explaining what's going with the system and why something like MDS is even there to begin with and the thinking behind the whole design. So yeah you're the best on UA-cam with these modern factory Hemi engines so keep the information coming bro and thanks for the help.
Loving these deep dives. There is a ton of misinformation out there about hemis and we don't really have many ways to prove or disprove a lot of the claims. Mad respect for you taking the time to explain all of this.
I experienced the cam//lifter failure in my 2010 Ram 1500 in November and did the repair myself. Mine was the #5 intake that failed, which is a non-MDS lifter, so correct, the failure occurs with both MDS and Non-MDS lifters.
My 14 and my dads 15 were both #5 exhause non mds lifter
Most of the time I hear about failures, it seems to be the intakes, but your cases show the exhaust gets affected as well.
2013 RAM had #5 failure at 130k, here, also. I can't remember if it was I or E but obviously non mds lifters. #7 was starting to go as well, rollers were getting sloppy.
@@stanlojewski6761 Oh, don't let John Smith see this post...he claims is only one lifter and the other 15 are always good.
@shepherdguy lol. Definitely not the case. I had one on the right bank that was "arguably" marginal, #6, I believe. The cam looked rough, as in the hard coating on the lobes were shot. Nice clean engine inside, fyi. I think it was inferior hardness and weak/small bearings in the lifter rollers that are most inferior on the older engines. I also believe that the hi volume oil pump is a major/important upgrade.
I skimmed through the comments but didn't see anything related to the exhaust manifolds leaking. It is pretty coincidental that the exhaust bolts started breaking in the 4th Gen Rams when MDS was introduced. Then Ram beefed up the bolts for the 5th Gen Hemi Rams, which then only moved the problem to the manifolds cracking, which are now the week point. Many suspect that the MDS causes the exhaust temperatures from the "disabled cylinders" to be cooler than the exhaust from the "active cylinders", which causes uneven heating of the manifolds. These exhaust leaks started when MDS was introduced.
Being a 2015 Ram 5.7 owner, I appreciate every video you do on these engines!
Love this entire series on the dreaded hemi lifter monster! I worked at a 5 star Chrysler dealership back in 05 when they reintroduced the charger with a hemi. I saw this on so many engines during my time there and we never really got any support from dodge on it.
I have a 2019 R/T with the 5.7 so I've been eager for your content regarding this. Your research has been amazing and really appreciated! Keep up the good work!
Learned a lot from this channel. Keep all videos coming. Appreciate your time. Definitely gonna get some merch
this is so awesome! cant wait to see the visual oil flow system u make
Great insight Sky! Lots of good information
Great video, lots of info on the MDS packed into this one.
Very excited to see your visual oil pressure system!!
Awesome, I've been waiting for this one. TY!
What an awesome explanation 👍🏻 great video bro 😎
Excellent tutorial
I have to say the 6.4l HEMI has been very good for our company and we work the dog shit out of them hauling 400 gallons of water in the bed driving all over the place on Oil Lease roads 12-14 hour days 5 days a week with lots of idling time. I stayed with 0W-40W Mobile 1 and currently sitting at 175k miles on a 2018 only problems we had were a fuel pump failure at 68k and a Radiator failure at 167k miles. I still do not hear any sounds of the Lifter roller failure yet. Out of our fleet of trucks we have lost 2 engines one to the lifter cam failure, but that truck was not serviced as it should have been and failed at 150k miles. To me the the 150k mile mark has been worth the engine performance we have gotten out of it. Had it been properly serviced like I have done to mine I believe they would make 200k. I am fixing to move into my new 2024 with a 6.4l work truck and will update it through its life time. I have learned a few things since that time from this channel that I will be doing with my new truck. Through its flaws I still think the 6.4l Hemi has been a damn good engine.
I have always enjoyed the content that you put out, Thank you sir and I have learned so much from you. Thank you.
By far the clearest and best explanation of hemi mds. Thanks for explaining it.
Another excellent educational video. Great explanation of how MDS works 👍
Brother, I think your channel is pretty good and I'm glad that there are channels like yours, I've learned a lot from your videos and I've also put into practice many of the things you've explained and taught...! good job and may you be very successful
Great job explaining. I love learning the how and why about how things work. I feel like there's so much speculation in regards to the mds system and lifter failure. It's invaluable to get insight from people like you with repeated first-hand experience.
Great video, love the content.
Can't wait to see the oil pressure demonstration.
Yes I am a student so this format appeals to me you are clear & to the point with important information.
GREAT video thank you for explaining how this system works!!
I really enjoy these videos explaining how the Hemi works keep them coming.
Could you potentially do an entire oiling system review on the Hemi motor? I would love to see the entire oil path...
Another great video!
it was cool to see the oil gallerys thru the lifter bores. its good to get this kind of detail so i know what to expect when i build a 5.7 . Your oil testing tool will be a cool video. cant wait to see it. take it easy sir.
I like these type of videos bro. Very informative. I talk to the homies about Hemi engines sounding like an expert. Thanks 😎
So far it works great in our 2019 Dodge charger. Great video with a lot of very interesting information.
I really enjoy these kinds of videos, I appreciate your time, effort and expertise that you share with us, thank you Sir 😁👍
Really good video,thank you, you make a very good teacher
This video is a keeper! I have a 2011 RAM with the 5.7 Hemi, automatic transmission, 2WD. I really like the truck, and I am obsessed with maintenance and reliability. This information has helped me understand the MDS system and strengthens my resolve to change the oil and filter every 3K using full synthetic oil and top-tier filters. I look forward to seeing your next video. Thanks sincerely.
Thanks for the video!
Thank you for pointing out the "galley/gallery" difference. I was guilty of being ignorant to this fact for many years, also.
Excellent video/insight!
Awsome video my guy. 👍
In my 2022 Challenger R/T, to avoid the lifter/cam issue, I now try to keep an eye on when the engine goes below 1000 rpm. I avoid unnecessary idling (e.g., going through a drive-thru, or sitting parked with it idling to stay cool/warm). If I'm stuck in crawling traffic (which is rare), every minute or so, I rev it up to 1200-1500 and hold it there for a few seconds to "feed the lifters" the oil they need. Eventually, I'll swap out to the new higher flow Melling pump so I don't have to worry about it.
Nice clear explanation of how the mds works, I never even thought about the need for positive cylinder pressure so the deactivated cylinders wouldn’t be trying to scavenge oil from the crankcase 🤔 Pretty cool!
Great Video !
Thanks for another amazing video! These deep dives into how the various systems work are fantastic. I have a '17 Cahallenger Scat 6.4 manual, and just bought a '23 Ram 5.7 (gets delivered tomorrow, pretty pumped, first NEW truck) anyway, saw a video on another channel about the tick and oil viscosity. Poster claimed dodge changed the recommended oil at some point to a lower viscosity, and that going back to 5w30 from (i think) he said 0w20, fixed his tick. Did dodge change viscosity recomendations at some point? And whats your take on this? Thanks, and keep it up!
Brilliant video, I’ve always wondered how this system works and if it a good thing to have. You explained it very clearly. The only thing I didn’t hear you mention is how critical is it to use the correct oil for this system to work properly. Thank you for a great video. I drive a 05 Jeep Grand Cherokee with the 5.7 and love this Jeep.
Sky, can you cover the 8HP70 transmissions, in particular the difference when running in Sport Mode via button, versus the ‘S’ position on the shifter knob? Seen many of your MDS videos, and by far appreciated explaining how not all HEMI’s come with it. Thank you!
Love these walk through videos. Actually seeing the parts and how they work in detail helps tremendously because I know nothing about this stuff.
I am a little confused though on one thing - if MDS is off, is there any oil making it to the lifters? A lesser amount of oil? In either case, isn’t that a bad thing? I don’t know anything about engines but you’d think less oil is bad (even if the oil pump is pumping the max amount).
Very good explanation of mds system. I hope you can show a video of using a tuner to deactivate the mds.
Great info Thanks!
I'm always looking for more useful info. Great explanation
Thanks for watching!
I am curious that if the MDS system improves lubrication and good that it remain on, why does the Tow/Haul setting prevent MDS operation? You would think that at a time when the engine needs the most lubrication, that it should remain functioning? Many times when steady cruising on the highway that MDS can turn on while towing but won't due to being in Tow/Haul mode.
Great question. I'm also wondering if MDS improves oil lubrication, when cold starting the engine allegedly the lifter bores are not getting proper oil lubrication or when you're WOT when oil flow I'd moat important because MDS is not activated during these times
👍 very helpful. Thanks for sharing.
I love these style videos. Learning as much as I can about the engine in my truck. I went through a lifter failure recently, now I have a new engine. I don't want that happening again, and I wanna get another 200k miles outta my girl. These videos are incredibly helpful!
Great video, do you think the changes in 2022 Ram made to a thinner oil is to help prevent the lifter failure? Or is it just to chase better mpg?
Awesome video
Great video as always and thanks for the in depth information. But - wen you say that a person gets in their car and turns the MDS off, is that meaning using the +/- switch on the shift lever (if they still have one)? Which causes the ECO to stop displaying, and the current highest gear to be displayed. Also, I notice that the ECO (MDS?) does not come on when in Tow/Haul mode. Does this mean when in Tow/Haul mode that the MDS lifters are not getting the oil that they should either?
Great video. What do you think about people switching the engine oil weight to 5w30
? Thanks.
Great work man, keep it up! Can you do a video on replacing the power steering pump on a 06-10 Charger? Or if you've done one already link it for me!?
Very good video. Thanks so much for the educational content. Could you do a video on why you think the 5.7 and 6.2 Hemi’s seem to be prone to dropping valve seats? GM also has an issue with that on their 6.2 V8’s. I would love to hear your take on that issue.
Dropping valve seat is a 2008 and older Hemi issue,not an issue on 2009 and up..
Great Video
Great content thanks
Very interesting, thank you
I really appreciate and enjoy these videos. I have a question. I have a 392 scat pack charger and I typically drive in a custom drive mode that doesn’t allow MDS to kick in because I don’t like how the car feels when it turns on. Will that damage my engine? My car is completely stock with no Mods done to it.
This was a fantastic video. I am new Ram 1500 owner. 2016
@ReignitedAuto Always enjoy your tech talks. Look forward to an instrumented oil system test - would be VERY interested to know where the pressure drops (restrictions) are within the oil system of an Eagle engine. Also curious, just to cover the upgraded oil pump - what is the pressure rating of a factory oil filter (very thin, stamped and rolled 28ga? sheet metal)?
Great explanation of the system. I am one of the people who have seen 23 - 24 mpg in my 08 Charger with the cruise set at 80mph on the interstate between Idaho Falls and Boise on more than one trip. We could see 16 - 17 mpg around town if we keep the road rage under control.
In my RAM, especially the 10 model, it didn't do much once you get above 50 - 55.
Throttle position is one of the factors for activation, and the trucks are heavy and requires more throttle at higher speed to maintain which puts it out of range.
Love your videos, keep up the great informative content!
Are 2019 Dodge charger also gets excellent fuel mileage.
Awesome awesome awesome video!
Great advice by not idling. I'd take it a step further and run 5w30 synthetic preferably redline or PUP
Good morning, first I love your videos and thank you for educating me. I am no technician, however, your videos has given me the courage to perform tasks on my 2019 dodge charger.
One question, can the cam be damaged and the lifters are not? I am getting misfiring in 3 and 5. Dodge techs could not find out what the problem is. Everything is new to the pistons. Please help. Thnx!
Great video, clear explanation, you know your stuff. I have the MDS on my 2015 300C and I love it. I am a conservative driver and when I take my car on the road I can get between 27 and 30 mpg. You said you have not seen numbers like 24 mpg before. Am I not to believe my trip summary?
I can believe 27- 30 would be a stretch though. I just generally don't see numbers that high because I'm not very conservative 😄
Man I really liked your videos early on. You were doing mods and swaps and kept every step clearly laid out and in reach for us weekend mechanics .
Now anytime I try to get any random help with my ram all I see is your latest “hemi tic” video or some other version of another video you’ve already made a year or 4 back that obviously did well for you. So well that it seems you’ve chosen your audience based on the views.
Add dramatic title to already dramatic situation and that equals views from those desperate individuals with hemi tic issues or MDS concerns.
I don’t blame you if it’s paying the bills. Hot issues like that have that potential.
I’m just saying I enjoyed your c10 content and the different hemi builds.
And personally I can’t get far enough away from this hemi tic bs. It’s old news. Id think by now we know the cause, repair, and preventative fix. And in my case thanks to you for much of that.
I feel your initial work on these old topics years back were plenty informative and are still available.
Take care
This may surprise you, but I feel the same way. I think I've done everything I wanted to do as far as education goes on this platform. And you're right, the project videos don't pay hardly at all, versus easier topics that appeal to a larger audience. The truth is, in this UA-cam space you've got to do the more generalized videos to pay for doing the more fun videos like swaps and such. But like I said, I think I'm going to step back from UA-cam because I'd like to go back to doing what I love, which is crazy conversations and also motorcycle builds. It doesn't make sense to keep making videos on these things because the 3-4k views I get on them pays about $32 total 😄. If you don't know I'm still a full time mechanic so UA-cam is still just a hobby for me. But it's a hobby that is taking too much time away from my family. I appreciate you watching what you did though, hopefully you were able to learn some things. 👍
Hello i would like more information on the impact of the hv melling pump on the low end of the variable cam time. Like does it make it only benefit the high end? Thanks for all your in depth information. I think you and vertical visions are doing gods work for the rams. Also I have a 2016 ram I get 16 city and 21 highway on the 5.7
Thank you!!
Hi great explanation, I’ve got a question i have a 14 charger 392 fully build engine high compression N/A and now my main problem is will the 5 speed transmission could handle the power that is producing or I’m going to face a slip in it and I thought of lot of modifications on it like upgrading the valve body and the converter but I’m worried that it won’t help Specially that the car is producing more over 600 whp I’ll be glad to hear a solution from you.
I turned off the MDS in our '14 300C 5.7 hemi about 4 years ago, using my tuner tool along with loading a hotter tune in the ECM, car returns 21-24 mpg with all 8 cylinders firing while driving at highway speeds. Works for me, have the option to turn it back on if I sell the car in the future. Mileage with MDS on was about the same, but the noise from it operating was enough to drive a person nuts, thus, good reason to turn it off IMHO. I also run a factory stock exhaust off my 6-speed Challenger, so resonance will be different in that exhaust, and it has 2.5" tubing as opposed to 2.25" stock system.
I keep oil & filter changed with good synthetic oil at or around 4K miles, no crud or sludge deposits inside this engine at all.
Great tutorial on this system, thanks Skye!
Hello. Could the noise you were experiencing with the mds active be described as vibration? Mine seems to be a vibration and I'm worried it may fail and leave me stuck or worse
@@youngnolo451 no, noise was from the engine running on 4 cylinders in MDS mode. My new Chrysler 300C 6.4 hemi makes the same noise when in MDS but quite a bit more muted.
Hey Havasu can you send me information on the tool used is that an affordable thing I can buy or is this just for; mechanics
Hello parts need it to do it?
Great video. Can I get clarification? I have a challenger with a 6.4L. It only gets driven about 1K miles a summer. I change the oil every Spring. I put it in sport mode after starting the vehicle. Would you recommend only using 'Sport' when necessary and let the MDS system do its job?
WELL DONE. Thank you
🇺🇸🇺🇸🇺🇸🇺🇸
Hello, how are you? Excellent video, I want to ask you, I have a Dodge Ram 1500... year 2014, 5.7 hemi engine, it has bad lifters and apparently also the camshaft, what replacement brand can I buy other than Mopar? Is it true that if you don't put Mopar it will sound the same?
just wondering if you could cover the alternator and charging system .is it true that in the case of an alternator failure do you have to replace the alternator,battery and ecu ? and is there anything that can be done to avoid the alternator failure ?
Thanks. Having some relation to ECM tuning, I can't even count how many times I've been hearing that sad-sad story about the MDS killing the engine. No, sir, It's absolutely not you using cheap engine oil and extending the oil change intervals, it's the dumb MDS. But here finally is a video that I can share, just to explain the whole thing. Thanks again!
My 2c - I personally think that what could really improve MDS operation is increasing the torque output of the engine. We're talking about N/A street daily driver engines, so no forced induction here - but a good AFR in all modes and some nice and smooth spark maps with more advance definitely help. Factory Ram tune is quite conservative to make it operable on low-octane fuel, but if the owner is ready to forget about the low-octane forever - then we can get more torque and efficiency out of the engine without sacrificing the mileage or the lifetime. And it would work for both V8 and V4 modes. Sadly, the well-known calibration editor for Dodge kind of lacks in terms of accesible MDS-related parameters.
I've seen and experienced the same effect on GM trucks, 3rd gen Tahoes and Escalades mostly. Proper tune for a stock engine is a world of difference, and the AFM/DoD, which is GM's name for variable displacement system, really helps save some fuel on the long highway trips and moderate throttle city drives.
Anyway, this has been a great video and definitely looking forward to the actual work demonstration that you've mentioned. Keep up this awesome channel!
How about those of us that want to keep the MDS working, but still want a bit more cam for some power gains? Any options there, or are we basically stuck in an "either/or" type situation.
Hi, this video is very helpful thanks. I have a 2006 Magnum 5.7l and turned off mds without installing hardware, my block now has a hole in it LOL. I have a brand new engine being put in this week, can I get away with just non MDS lifters and the solenoid plugs, or do I need to add a camshaft to the build as well? Thanks in advance.
Also could you use a hellcat piston in a truck 6.4 engine for boosted applications
Hi thank you for the informative video. I have a 2010 jeep grand cherokee 5.7 with mds ,and was wondering if I was to cancel the mds system would I need to use a tuner or just the plugs along with the non mds lifters and also the camshaft ,, another question I have my suv has around 125000 kms and unfortunately over heated with the previous owner ,, so i am rebuilding the engine ,, would I be able to reuse some of the old parts and just swap the pistons and the rings to an oversize ,, any aftermarket rebuild kit that is recommended by you ?
Do you have a video on installing the high volume oil pump for the Hemi?
It’d be awesome if you explained this system for the 4.7L v8 lineup chrysler had. Owning a ram 4.7 saw I had the “eco” mode too
Thank you
Is there a reason the camshaft doesn’t have to be replaced when removing MDS?
In other YT videos, people mention needing to change lifters, camshaft, and blocking MDS off.
So the camshaft are still compatible deleting the mds? No need to replace it?
I've heard of the high idle time being an the main issue causing the worn cam/lifter issue, but what is considered high idle time? I haven't been able to find a definition for high idle time. I have a 14 ram 1500 with the 5.7. My idle time in the instrument display is approx 20% of all run time since I use remote start quite a bit. Thanks.
Cooling system upgrades. 180 degree thermostat, larger radiator. Transmission cooler.
Things to keep the engi e cooler and in the performance band in the South during summer. We don't really have a winter.
Nice job explaining this system. Now I have to work on my drive-thru anxiety. (idle time). Any thoughts on using 5w-30 vs recommended 5w-20 oil. Heavier weight may increase oil psi a bit.
Watch the video on hellcat pump vs the high volume melling pump, but basically keep the recommended oil 5w-20
Just to add 2022-2023 use 0w 20 oil and my psi is the same as my 2020 with 5w20 I see no difference with the psi cold,warm or hot or driving at any speed!
So as a “poor man’s” mds delete, is it bad for the engine/lifters if we just drive exclusively with manual mode on the auto-stick?
I’m not a fan of the factory shift logic and prefer shifting myself anyway. I am wondering if this is somehow bad for the lifters never collapsing for 4 cylinder mode?
Any thoughts, please? Thanks for the amazing content!
Would you have any idea of how to get an MDS solenoid out that has broken off inside the block? I just had one brake off today and haven't found any good guides to get it out.
I've had my 2015 5.7 Ram since new and continue to have zero of the problems people warn about on these engines. MDS is a great way to maintain dynamic compression under light throttle without EGR & with a single camshaft. The dudes who always complain about MDS are like the old guys 40 years ago who didn't want to let go of carburetors and distributors.
I don't like MDS because I have LT headers and when it goes into 4 cyl it sounds like crap. So I turned MDS off
Same boat here, 2015 hemi ram no real issues, but I change the oil myself. There are a lot of oil change places that don’t change the oil and act like they did. I also don’t baby it, it is a hemi after all.
Guess you’re one of the lucky ones
I have had the same experience as far as the cams. But you're exhaust manifold bolts WILL break at some point
The MDS hangs sometimes and transitions poorly, but I haven't had any problems besides that. My hemi is at 186k miles.
Would enabling a high idle function do the same thing if your sitting in your vehicle for a while? Emergency vehicles idle very often and municipalities don't want to pay alot for modifications
I’ve been asking that for a while. My 20 1500 idles at 550 hot and sits around 31 psi. I’m in the mid 40s if I use my foot and get it around 650 rpm.
When we first bought ours I hit 30 mpg at highway speed (cruise set at 65). Sweet!
2007 aspen , MDS wells/holes at the bottom have like a round metal plate they have like 1/4 of that round cover missing, like a small chunk broken but are they like that?
2015 Ram short box/ reg cab. Hemi with no issues at 195,000 kms. Do my own synthetic oil changes. Best highway run last summer pulled 25 mpg, pretty good. Truck has catch can and muffler delete, MDS not a problem or issue for me.
Your the hemi goat
Off topic, How hard would it be to throw the AWD system from the SRT Durango/Grand Cherokee on the Scat Pack Challenger seeing that they share the same engines and trans and the rear diff. Or would the swap be easier with the 5.7 AWD Charger pre 2016. I have a 2021 Scat Pack and if i set the cruise control at 65mph Ive seen 27mpg on road trips. Only once pre 10k miles.
Ya great info, just a simple question, do I need to do any ECM programming when eliminating the MDS solenoids?
Yes you will need a tuner to turn the system off completely otherwise you will have a constant check engine light 👍
I've got a 2017 Ram 1500 std cab 4x4 with the 5.7 hemi I get 22-23MPG's on the hwy if I set the cruise at or around 65. 70+ it drops to 20-21.
Question as someone who’s been pretty involved researching this same topic: You mention tuning off only can cause issues that the MDS cylinders will not get adequate oiling when their lifters are no longer fully in use (I’m paraphrasing, I know I’m not quoting 100%). If that is the case, wouldn’t running WOT, or in manual mode, also then be bad? Why would running all 8 tuned off then be worse?
I’ve had my 6.4L Challenger coming up on 5 years now, 101k miles, and majority of those I’ve ran with the MDS on. I drive many long trips and the benefits have been noticeable. But on occasion I will tune off, for the smoothness of just running on 8 all the time. And with my Solo exhaust now it just sounds far better always being in V8, as it’s very jerky due to the “noise” change as it switches to V4, it sounds very lugged for a second. And it will vibrate a bit. I do know this is due to my own exhaust, not totally the MDS’s fault.
You mentioned the best way to get rid of MDS was by plugging the solenoids and replacing with non-MDS lifters. Does this mean I can get it done with without replacing anything else?
Just got the cylinder 1 misfire on my 2014 srt Jeep. Drained the oil and there are metal shavings in the filter. From your experience, would you change the cam and lifters or go straight to a full rebuild? I have not taken the motor apart yet to see the extent of the damage but I have one shop saying cam and lifters and another saying full rebuild without looking at the motor.
Hi,I have a 2016 ram 1500 sport whipple supercharged as a daily driver and I have the MDS turned off. Should I be concerned about it?I change oil every 3k miles 5w20 fully synthetic and is at 60k miles at the moment. Thank you.