Thomas95SC
Registered User
I'm going to remove the back cover off my diff to flush and change the fluid in it. The car has approx. 110,000 miles on it and I dont think its ever been done. I bought some Valvoline Synthetic 80w-90w gear oil. I have an open diff. with traction assist and was wondering if im suppose to add any kind of friction modifier to it? I didnt see it in any of the parts store. I seen some posts about adding it in when I did a seach but im not sure if I need to use it on my car?????