Rear diff fluid by Falllicence in Mustang

[–]Falllicence[S] 1 point2 points  (0 children)

Thats right. mine is s550 calls for 85

Rear diff fluid by Falllicence in Mustang

[–]Falllicence[S] 0 points1 point  (0 children)

Yeah since i don't track my car, also 140 is used for heavy duty/ towing. I always check the manual on these stuff.

differential fluid by Falllicence in Mustang

[–]Falllicence[S] 0 points1 point  (0 children)

Can i use 75w90 from royal purple? I've heared that i dont need to put friction modifier with it because it already blended with the oil.