5w30 Liqui Moly and Warranty

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Wild one

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I don’t believe this is correct. When towing, the load on the truck typically disables MDS. Hence, folks that tow a lot, or tradesman that tow all the time, would constantly have lifter issues.

With MDS in or off the lifters still get lubrication.

Also, MDS has zero effect on my gas mileage. Going from St Louis to Gulf Shores, I left MDS on going and turned it off coming home. Hand calculated I lost .01 mpg with it off. It’s a system to show the government the it’s doing something to help Cafe ratings. I guess with millions of engines using MDS it probably does save some gas world wide. Ha. What a joke
Spend 25 minutes and watch this video.This man has several video's on some of the Hemi issues that are worth watching.


 

ramffml

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You do what you want, on the end is your truck or car,but I know one thing,they gonna trying and using any reason that my affect the warranty to denying their responsibility,you may cheat or do what you wish with it,again is your vehicle.

Worth mentioning that according to the 2022 manual, you're running the wrong oil, you should be running 0w-20 now. So over the years, the manual has said various viscosities are acceptable: 5w-30, 5w-20, and now 0w-20.

Spend 25 minutes and watch this video.This man has several video's on some of the Hemi issues that are worth watching.



MDS has been active on hemi 5.7's since 2006(?). No lifter issues (as a real problem, I'm sure somebody somewhere got a *** lifter) until 2009. Then we've seen it rise as an issue after the 2009 update which included VVT, but most seem to agree it was worst between 2009 and 2014 or whenever they updated the lifters.

Hemi tick also occurs on non mds lifters, and on hemis that don't come with mds (manual chargers, 5.7 in the 2500's). It also occurs on one lifter in an engine, whereas other lifters in the same engine with the same oil and the same duty cycle are in "like new" condition.

All that, IMHO, is proof that MDS is not the problem.
 

Burla

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I don't know that is "proof" mds isnt the problem, but certainly it does prove mds isnt the only problem "if" it is a problem at all. What would be helpful, is to know how many mds lifters fail in the cams that have mds and fail, since they shut down the same lifters every time. But since we dont run the old fca, all we can do is wing it and see what sticks, or more appropriately doesnt stick.
 

Randy Grant

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I don’t believe this is correct. When towing, the load on the truck typically disables MDS. Hence, folks that tow a lot, or tradesman that tow all the time, would constantly have lifter issues.

With MDS in or off the lifters still get lubrication.

Also, MDS has zero effect on my gas mileage. Going from St Louis to Gulf Shores, I left MDS on going and turned it off coming home. Hand calculated I lost .01 mpg with it off. It’s a system to show the government the it’s doing something to help Cafe ratings. I guess with millions of engines using MDS it probably does save some gas world wide. Ha. What a joke
That's really odd. It was downhill going "down" there, and "up-hill+ coming back up there.
 

star_deceiver

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Question. How can they tell what is the viscosity of your oil?

Simple, they ask for receipts or proof of oil change. If something went that far south that the dealer has to pony up a large replacement cost, they're going to put the burden of proof on you. If you got your oil changed at the dealer, no problem. If you do it yourself then you should have enough oil and filter purchase receipts to cover the mileage shown.
 

David James

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My 2019 Hemi Classic has an occasional lifter tick on startup….not always but often enough to be a concern. After 10-30 seconds all is quiet. I’ve been using PUP 5w20 or Valvoline FS 5w20 since I’ve owned it.
My neighbor has a VW Atlas with a v6 and similar issues. His VW dealer recommended Liqui Moly 5w30 and he swears no more noise and smoother running.
I’m very interested in trying the Liqui Moly next oil change but would 5w30 void the warranty if the engine/cam fails? I’m not worried about MDS because I generally turn it off with the
-gear switch….I hate the exhaust moaning with my magnaflow muffler.
I know Liqui Moly is not the most popular and more expensive than other oils, but I intend to keep the truck a long time so a few dollars extra for oil is not a big deal to me.
Any input is appreciated
Why not get it in 5W20? It’s a good quality oil but there are plenty of others that will work fine. I have just over 100k in my 2016, no noise, use 5W20 whatever on sale, currently Shell Rotella Gas Truck, always a Wix/NAPA filter. Do a 5k change regimen, but oil is still cheap insurance. No reason it’d void your warranty but if in doubt contact Ram.
 

Light299

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It's sort of funny to me that given the massive knowledge of hemi tick in the general community and multiple instances of the same failure mode (they even revised the lifter design once) that any dealership would attempt to disqualify a warranty replacement because of oil weight. Now I agree they WILL, but maybe that's what lawsuits are for?

IMO the hemi is a 120k mile engine. Plan accordingly. Redline greatly reduced the tick mine had since 7k miles. Maybe it'll see 160k like the blown engine ones on CL.....

I get sad when I compare my '19 ram to my previous DD (a 300k mile 96 camaro) it had no lifter tick and it's key fob always worked....
 

Elkman

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Lawsuits are great for the attorneys who are paid up front but not a solution for those without money to burn. I would stick with the recommended oil weight. Any motor oil that meets the SAE specfications is as good as any other for a gas engine. You can pay more if it makes you feel better with something like Amsoil but it will not provide any better protection for the engine. With diesel engines the Amsoil product is one of the worst with its poor additive mix but that is a different matter.
 

joesstripclub

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I don’t believe this is correct. When towing, the load on the truck typically disables MDS. Hence, folks that tow a lot, or tradesman that tow all the time, would constantly have lifter issues.

With MDS in or off the lifters still get lubrication.

Also, MDS has zero effect on my gas mileage. Going from St Louis to Gulf Shores, I left MDS on going and turned it off coming home. Hand calculated I lost .01 mpg with it off. It’s a system to show the government the it’s doing something to help Cafe ratings. I guess with millions of engines using MDS it probably does save some gas world wide. Ha. What a joke

While you are correct that MDS will not engage while the truck is under heavier loads, it would still engage if you coast down a hill. The other thing to consider is that while towing, you are running higher RPMs which helps sling sufficient oil onto the cam. It is really a combination of everything on these trucks: mds, high rpms, and lubrication strategy.

I definitely am not a fan of MDS. I turned it off every time I drove for probably the first 2 or 3 years I had the truck until I read all the research on the forums. I can't say that I get any more mileage with it on either.
 

AJNY

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I have a 2021 Ram 1500 5.7. Read the owners manual. Either 5W20 or 5W30. I don’t care what anyone else says on here. I had the liter tick at 900 miles. Brought the truck into service. They said the tick was normal. Bull crap. I was a Ford mechanic and never heard a lifter noise in any new Ford nor any new MOPAR engine before (50 years under my belt).
After reading other posts I switched to REDLINE 5W30 and XL ROYAL PURPLE FILTER. My trucks sits for months. Never a lifter tick since using this combination. I told the service manager at the MOPAR dealer that I am using 5W30 said not a problem. Again, look at the owners manual.
 

pacofortacos

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I don’t believe this is correct. When towing, the load on the truck typically disables MDS. Hence, folks that tow a lot, or tradesman that tow all the time, would constantly have lifter issues.

With MDS in or off the lifters still get lubrication.

Also, MDS has zero effect on my gas mileage. Going from St Louis to Gulf Shores, I left MDS on going and turned it off coming home. Hand calculated I lost .01 mpg with it off. It’s a system to show the government the it’s doing something to help Cafe ratings. I guess with millions of engines using MDS it probably does save some gas world wide. Ha. What a joke
MDS does help mpg under the right conditions, due to aero resistance highway use is not one of those conditions.
 
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zogg

zogg

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I have a 2021 Ram 1500 5.7. Read the owners manual. Either 5W20 or 5W30. I don’t care what anyone else says on here. I had the liter tick at 900 miles. Brought the truck into service. They said the tick was normal. Bull crap. I was a Ford mechanic and never heard a lifter noise in any new Ford nor any new MOPAR engine before (50 years under my belt).
After reading other posts I switched to REDLINE 5W30 and XL ROYAL PURPLE FILTER. My trucks sits for months. Never a lifter tick since using this combination. I told the service manager at the MOPAR dealer that I am using 5W30 said not a problem. Again, look at the owners manual.
My owners manual states only 5w20 with no reference to 5w30. Older manuals do indicate 5w30 is ok if 5w20 is not available:

Engine Oil Viscosity (SAE Grade) — 5.7L Engine
Mopar SAE 5W-20 engine oil approved to FCA Material Standard MS-6395 such as Pennzoil, Shell Helix or equiva- lent is recommended for all operating temperatures. This engine oil improves low temperature starting and vehicle fuel economy.
The engine oil filler cap also shows the recommended engine oil viscosity for your engine. For information on engine oil filler cap location, refer to the “Engine Compart- ment” illustration in this section.
Lubricants which do not have both the engine oil certifi- cation mark and the correct SAE viscosity grade number should not be used.


Note that it denotes “recommended”, not required or mandated.
 

czervika

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Question. How can they tell what is the viscosity of your oil? Is it color? Just wondering. I use Mobile1 6qts of 5w-20 and 1 qt of LUCAS full synthetic lubricant. The tick goes away at startup within a couple seconds. 92K miles.
By the receipts they going to ask you to produce to prove you've followed their maintenance schedule.
 

pacofortacos

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^^ This is usually the largest stumbling block.
 
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