5w30 Liqui Moly and Warranty

AJNY · Aug 2, 2022

I forgot who posted this study:

AJNY · Aug 2, 2022

zogg said:
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

Here is a 2021 RAM 1500 post in the owners manual:

Silby · Aug 4, 2022

AJNY said:
Here is a 2021 RAM 1500 post in the owners manual:

Try Z Max. I have been using it for years. No tick, great oil pressure on my’14 Ram Hemi. 75 k

lAWROSA · Aug 4, 2022

I bring 7 quarts of PUP 5w 30 and a Wixs filter to my dealer. They change the oil for me with what I supply. 20w oil is too thin for the southern heat. The closer the # togther the less additives an oil has and viscosity stays longer. A 0w-40 will break down to a 20w in no time. Since winters here do not drop lower then 20F I am considering a 10w30. Less additives to get the viscosity. Dealer here is south stated 30w will not void warranty. They do it for free for me and rotate my tires every other oil change. I leave MDS on now. I get 18.5 MPG combo driving. 2020 ram classic. only has 30k miles

Hydrasport23 · Aug 18, 2022

Question for those using MOLY additive in their oil. Moly is short for molybdenum disulfide. Moly can be found in certain grease mixtures. It acts like little roller bearings in grease and likely the same thing in motor oil. U-joint manufacturers do not recommend molybdenum disulfide in u joints because the additive in the grease can cause the rollers to slid rather than roll. The hemi has roller bearings in the lifter's cam follower. Do you think the rollers in the lifters may start to slide rather than roll as they should because of the moly additive?
Our management was sold on a motor oil with a moly additive that was supposed to increase fuel mileage and make the engine last longer. They used that oil with a moly additive in half the fleet. We started flattening the rollers on the bottom of the lifters on those engines. That experiment cost the company several engines.

Burla · Aug 19, 2022

Oilman2383 · Aug 19, 2022

Hydrasport23 said:
Question for those using MOLY additive in their oil. Moly is short for molybdenum disulfide. Moly can be found in certain grease mixtures. It acts like little roller bearings in grease and likely the same thing in motor oil. U-joint manufacturers do not recommend molybdenum disulfide in u joints because the additive in the grease can cause the rollers to slid rather than roll. The hemi has roller bearings in the lifter's cam follower. Do you think the rollers in the lifters may start to slide rather than roll as they should because of the moly additive?
Our management was sold on a motor oil with a moly additive that was supposed to increase fuel mileage and make the engine last longer. They used that oil with a moly additive in half the fleet. We started flattening the rollers on the bottom of the lifters on those engines. That experiment cost the company several engines.

This is exactly why I've never been a fan of oils and hydrualic fluids that tout a moly additive. Moly is a solid additive used in greases to provide a non-adherent sacrificial solid surface until the king pin, bushing or non-roller element bearing can be re-greased. In any kind of oil (engine, hydraulic, gear) I would rather see them using ZDDP, Zinc Dialkyldithiophosphate, or and EP additive such as Sulphur Phosphorus. These additives provide a non-solid sacrificial layer that bind to the metal surfaces in the equipment they are used in. Using a solid like moly in oils and fluids is almost like a double negative in grammar. You add this as an AW protectant, but these systems are designed to use a filter that is meant to trap solid particles of soot, ash etc. Why would you add more solid particles, even though they are supposed to be for anti-wear, to a system that is designed to filter them out? Just my 2 pennies.

Burla · Aug 19, 2022

What is the s2 on mos2? What is the moly used in all engine oils today, MoDTC correct? Is that solid? What is the difference in AW additives versus EP additives? Is 7 times lesser coefficient of friction on perpendicular forces a good thing or a bad thing? Why does every major oil company use moly in their motor oil? Why does every cam builder pack their cams in moly on install? Exactly what oil do you 2 use that doesnt have moly in it?

CheechDogg.0n37s · Aug 19, 2022

This is getting "GOODER" !!!

:gathering:

Big Blue Hemi · Aug 22, 2022

I doubt that should you use PUP 5-30 oil anyone could prove it lead to a motor malfunction although I totally distrust the factory and dealer. That said I use PUP 5-30 and have used liqui-moly in the past but there has always been the slightest start up tick. I no longer use it only because it didn’t seem to change anything. I’m Not a big fan of additives but I do believe some are useful.

miketx · Aug 29, 2022

In my '16 manual, it says 5w-20 for the 5.7, 5w-30 for the 5.7 (2500/3500 series only), and 0w-40 for the 6.4. So...theoretically you could use 5w-30 in the 5.7..no problem, unless you have a warranty. I have a lifetime warranty...I stick to 5w-20 PUP (and have all the receipts).

1 MEAN66 · Sep 18, 2022

zogg said:
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

I wrote some emails to some oil companys, Mine were actually about my 2014 Victory Cross Country. The Victory oil I was using was no longer available ( yes I know Victory did NOT make the oil - they just had it packaged for them) so the answers I got from all that responded- do not remember who, as I did this in 2016- their RECOMMENDATION was to never change the first number and you could change the second by one. Example 5W-30 the 5 stays the 30 could go up or down 5W-20 or 5W-40. I also assume that average temps. for where you live can have an effect, Arizona vs Alaska.

Ghost1500 · Sep 19, 2022

I went to a 5w30 and the truck loves it. And yes, I use LiquiMoly 5w30 MolyGen in the green bottle. I also use LiquiMoly Hydraulic Lifter Additive as well. No ticking...

Best regards,

-Mike

John Schmidt · Jan 30, 2023

Wild one said:
Pay attention to the note at the bottom.

Hi Wild one. What year manual are you showing us? My 2020 Ram 1500 manual does NOT have any mention of 5w30 for the 5.7L. Thanks!
John

Wild one · Jan 30, 2023

John Schmidt said:
Hi Wild one. What year manual are you showing us? My 2020 Ram 1500 manual does NOT have any mention of 5w30 for the 5.7L. Thanks!
John

They removed that note about 2016.Apparently they were getting static from the government nannies about the trucks not meeting their CAFE numbers with 5W-30,and now apparently they've dropped the oil specs down to 0W-20.The engines haven't changed since the block was redesigned for VVT,so you can take the oil specs for what they are,and that's to keep the nannies happy

John Schmidt · Jan 30, 2023

Wild one said:
They removed that note about 2016.Apparently they were getting static from the government nannies about the trucks not meeting their CAFE numbers with 5W-30,and now apparently they've dropped the oil specs down to 0W-20.The engines haven't changed since the block was redesigned for VVT,so you can take the oil specs for what they are,and that's to keep the nannies happy

Thanks. I'm in summer year around, and my gut tells me 5w30 is the right/best choice for me .... although it really would feel good to have something in writing from FCA saying that 5w30 is okay. I'm not sure when the block was modified for VVT, but I think you're telling me that my 2020 engine is the same as the 2016 engine - which is probably as close as I'll get to having that good feeling about 5w30. I'm using Red Line, which by itself (brand name and missing some API spec) makes my choice outside of "acceptable" oils. Like most, I'm trying to do what's best for the engine, not what's best for the mpg. I also don't blindly follow the "that's what the Engineers say, so I have to use 5w20" line. I'm not sure where to even get verification that FCA engineering is the group saying 5w20. It would be neat if FCA engineering could "chime in" here and give us some background info and/or justification - or simply confirm that 5w20 is all about CAFE and mpg. My manual does state (exact wording) regarding 5w20, "This engine oil improves low temperature starting and fuel economy". It doesn't say "improves compared to 5w30 or anything else". One would hope that if there was a lubrication issue around using 5w30 instead of 5w20, that they would state that in the manual and say "This engine oil improves low temperature starting, fuel economy, and fits into the bearing clearances" or whatever would require a less viscous oil. With as many issues or at least concerns voiced over hemi-tick, why keep it a secret? I also see the words "Lubricants which do not have both the engine oil certification mark ane the correct SAE viscosity grade number should not be used." The use of the words "should not" is an interesting choice, vs "cannot" or "must not", etc.
Thanks again.
John

Wild one · Jan 30, 2023

John Schmidt said:
Thanks. I'm in summer year around, and my gut tells me 5w30 is the right/best choice for me .... although it really would feel good to have something in writing from FCA saying that 5w30 is okay. I'm not sure when the block was modified for VVT, but I think you're telling me that my 2020 engine is the same as the 2016 engine - which is probably as close as I'll get to having that good feeling about 5w30. I'm using Red Line, which by itself (brand name and missing some API spec) makes my choice outside of "acceptable" oils. Like most, I'm trying to do what's best for the engine, not what's best for the mpg. I also don't blindly follow the "that's what the Engineers say, so I have to use 5w20" line. I'm not sure where to even get verification that FCA engineering is the group saying 5w20. It would be neat if FCA engineering could "chime in" here and give us some background info and/or justification - or simply confirm that 5w20 is all about CAFE and mpg. My manual does state (exact wording) regarding 5w20, "This engine oil improves low temperature starting and fuel economy". It doesn't say "improves compared to 5w30 or anything else". One would hope that if there was a lubrication issue around using 5w30 instead of 5w20, that they would state that in the manual and say "This engine oil improves low temperature starting, fuel economy, and fits into the bearing clearances" or whatever would require a less viscous oil. With as many issues or at least concerns voiced over hemi-tick, why keep it a secret? I also see the words "Lubricants which do not have both the engine oil certification mark ane the correct SAE viscosity grade number should not be used." The use of the words "should not" is an interesting choice, vs "cannot" or "must not", etc.
Thanks again.
John

You can bet that if FCA/Stellentis figured 5W-20 or 0W-20 was best for engine longevity they'd be mentioning it,but all they say is it's good for cold weather starting and milege,and nothing is said about engine life.The 5.7's in the HD trucks spec 5W-30 if you're towing or loading the truck heavy,and all 6.4's call for 0W-40.

AJNY · Sep 29, 2023

zogg said:
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.

STEVE WALSH put out an extensive memo on the Hemi Lifter failures. Who is Steve Walsh? He is a master mechanic and was an Air Force master mechanic. He diagnosed the lifter failures and determined that the lubrication played a part in such failures. Neither Ed or Steve will touch a modern Hemi engine in their shop. Reason being the engine is garbage. I will try and find that memo. FYI I had a 2009 Hemi in a Jeep Grand Cherokee. Quiet as a mouse. Sorry I sold that truck. Both my 2018 and 2021 had the lifter noise. FYI STEVE Walsh owns a awesome engine machine shop in Liberty New York with his brother Ed. The Service Manager told me 5W30 was perfectly ok. He just told me to save all my receipts for the oil changes. I have a shop at my house with a lift.

AJNY · Sep 29, 2023

From Steve Walsh.

Wild one · Sep 29, 2023

AJNY said:
From Steve Walsh.

Little FYI Burla has posted that exact paper a few times,but it never hurts to repost it again though.

5w30 Liqui Moly and Warranty

Senior Member

Attachments

Senior Member

Attachments

Member

Member

Member

Senior Member

Junior Member

Senior Member

Banned

Keep on keeping on

Senior Member

Senior Member

Senior Member

Member

Senior Member

Member

Senior Member

Senior Member

Senior Member

Attachments

Senior Member

Similar threads

Forum statistics

Share this page