QDII Differential Fulids do I need to be concerned?
Went to Sears today to have my differentials serviced prior to an extended trip(2K-3K) next week. I took along 2 bottles of the MOPAR friction inhibator and thought all was good. When the car was finished the bill was for $55 (appoximately) which sounded too low. I ask if they did both front and rear unit answer was no only the rear. My next question was did they use both bottles of the inhibator.. answer yes. So they told me they would redo the rear and do the front. I ask about the friction inhibator which I can only find at the dealer and they said the gear oil they use already has it in it. I ask for a spec sheet and here what it said
Gear oil 85W-140 Permium multipurpose formula, next generation performace, Helps improve resistance to corrosion and scoring
Gear-Rite Premium gear oil is a premium formula consisting of highly refined base stocks compounded with extreme pressure anti-ware, limited slip, corrosion inhibitor, rust preventative and foam suppressant additives.
Performace spec: For use in all domestic rear axels and manual transmissions, and all heavy duty truck rear axels
Also for use when
API MT-1, GL-5 GL-4, GL3 oils are recommended
MIL-PRF-2105 is specified
Extreme pressure performace is required
Mack GO-J gear oils are required.
Sorry for the long post but can someone tell if this stuff is ok to use and whether I need to get two more bottles of friction inhibator and have it put in or have some other type of fulids added.
I have an 06 4.7 XK with QDII Transmission