ATF Fluid which one
Ok I know I need Dex VI, is there a recommend brand for this. AC Delco, Valvoline etc. One more question what is the recommended fluid that you all use on your differentials I need to change this ...
Forum Discussion
Campfire Time wrote:{tpc} wrote:
I have an 07 but I used mobil one in the front diff, and lucas oil in the rear, because I couldn't find the right weight stuff for the rear in mobil one.
Interestingly enough, Mobil One's gear oil does not meet GM specs. I used it anyway on the front differential of my old Trailblazer.
Matt, the spec for what type of differential fluid should be used is listed in your manual. I hesitate to tell you what my manual says because you have the previous generation of truck.
I stand corrected. :) FWIW, it made me go back to double check what I used in the front, and I misspoke, it was valvoline not mobile one. I know this because I got it from advance auto in my area, and they only carry 80w90 in valvoline and 75w90 in mobile one. My manual calls for 80w90 for the front.
Now whether or not valvoline is gm spec'd I do not know, probably isn't lol. :) Haven't had any issues though. :)
