bigdodge
Happy Ram Owner
- Joined
- Aug 25, 2021
- Messages
- 4,330
- Reaction score
- 2,759
- Points
- 113
- Location
- southwest. where majority rules
follow owner's manual is the best bet.
5thGenRams Forums
Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!
5w20 vs 5w30
- Thread starter 2021pearlblack
- Start date
silver billet
Spends too much time on here
- Joined
- Apr 18, 2019
- Messages
- 2,779
- Reaction score
- 2,718
- Points
- 113
Owner's manual also says transmission fluid is "lifetime" and doesn't need to be serviced. They're very clearly wrong as ZF says to service it.
5w-30 offers superior protection, it's not a "oil cap" thing it's a tribology thing.
Meh...the cap on our 2020 Limited says 5w 20, so I run Redline 5w 30.Oil cap says 5w20, so I run 0w20...
There are lots of arguments on which oil to run. This new thread is pointless with the information available out there. Older Hemi's called for 5w 30. Newer Hemi's call for 0w 20. At some point between they called for 5w 20. But nothing internal was changed as far as bearing clearances go. I believe they changed the recommended oil from 5w 30 to 5w 20 after adding MDS. I never let MDS engage so I'm confident running 5w 30. I also do 5k oil change intervals.
In the end my point is if you're worried about your warranty then you should stick with the recommended viscosity. Period, end of sentence. If you're less concerned about that (as in my case) then run what you feel is best for your engine.
