Hey guys i want to change my pumpkin fluids front and rear. i was going to use the royal purple synthetic. the question is, that i have a locker in the rear and i'm not sure if i need an aditive or not. and if i do need one what do i use?

Thanks for all the help!!

 

From what I read, there is no additional additive required when using Royal Purple synthetic. But if you do hear any chattering, just add a bottle of the Mopar additive and that should take care of it.

 

Yeah. You won't be sorry using royal purple. I love that stuff.

 

How does that truck do with the 4.10's? Performance and fuel milage? I have 3.55's and they aren't as nearly as fun as I would guess the 4.10's are and my gas milage isn't phenomenal with all the hills around here.

 

i love the 4:10s but for gas milage its good i guess as good as its going to get. performance is great off the line it very quick very responsive. i will get some up dated pics of the truck with all the mods.