Diff ?

[Cudaman]

I'm changing my gear oil and need to know if I need the posi additive if I use Royal Purple. I believe some oils have it in it, but can't find any information about needing it with RP. Thanks!

 

[ST-8]

RP should have it in it

 

[Sparkyy]

I put in Royal Purple 75w-140 in front and back. Didn't add anything else and been going now for 30k miles with no problems. And had use my 4x4 a lot this past winter.

 

[Cudaman]

Thanks Guys