ramffml
Senior Member
- Joined
- Jul 12, 2019
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- Ram Year
- 2019
- Engine
- hemi 5.7
Yes I'm aware of the meaning the oil's viscosity ratings.
Could you elaborate why you'd use 0w-30. Isnt 20 good enough when hot?
This is quite controversial; many here would never consider running any other weight other than what's written on the fill cap. But many of us run a 30 weight because the thicker viscosity offers more protection. If you're just daily driving your truck and it never gets hot then you can probably get away with the thinner stuff, but if you tow or if your engine gets quite hot, 30 weight is recommended.