DannyMK2
Senior Member
- Joined
- Mar 25, 2013
- Posts
- 1,727
- Reaction score
- 491
- Location
- Long Island, NY
- Ram Year
- 2015 Power Wagon
- Engine
- 6.4 Hemi
what are you guys using for gear oil? finding a synthetic gear oil that doesnt have the friction modifier in it is almost impossible. i remember mobil one used to have 75w-90 both with and without the addtive. doesnt seem like they have it without anymore. every brand im coming across says it has it (unless im missing something), with the exception of mopar fluid and mobil delvac 1. i could swear i remember reading that you shouldnt use a friction modifier in a torsen diff, but all these fluids that seem to have the modifier in it already would lead me to believe people are using it without issue and im overthinking this.