Who Has Ran 5w30 in the 4 gen 1500?

[LABIGHORN]

I ran 10w30 on my first oil change back when I first got the ram 09 hemi. Threw the change engine oil light within 200 kms. I was told by my dealer to just ignore it and drive till the 5000 km mark nothing would be harmed. I did and I've ran penzoil synthetic 5w20 since on extended drains. No issues.


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[smiley]

There is no proven benefit to running a 30 over a 20 anyway. It is old way of thinking that thicker means it protects better. Reality is the 20 allows the engine to achieve better economy than a 30. They adopted 20 to help meet EPA standards. The way I see it. If I can run a 0W-20 for 10k that is plenty to me and there is no reason for me to go against the grain with a 30. "Light" oil works and keeps warranty intact. I am on my second Hemi and my Dad is on his 3rd all have never been opened or had issues with the 0w-20 or 5w-20 so it must be fine.


$miley

 

[Havix00]

Not doubting your mechanical intelligence, but I came across this excerpt about Hemi engines:

"If you have an MDS engine (all current 5.7 engines!), only use 5W20 oil. You need the right oil. If the owner’s manual says something else, follow its advice - but don’t be convinced by a mechanic. Insist on the right grade and if they don’t use it...get a refund and go somewhere else. (You can quote TSB 09-015-04 and 09-013-04, “Vehicles with the Multiple Displacement System must use SAE 5W-20 oil. Failure to do so may result in improper operation of the MDS.”) Watch the mechanic pour it in if you have to! Numerous engine problems have been reported as being due to the use of the wrong oil, sometimes poured in against the request of the vehicle owner. Usually, these problems can be resolved with an oil change, but not always."

sauce: The new Dodge Hemi V8 engine in full detail - 5.7, SRT8 6.1, and 392 6.4

 

[smiley]

You could disable MDS but even then I would stick to a 20.


$miley