can i use mobil 1 75-90 LS for differential fluid change?
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can i use mobil 1 75-90 LS for differential fluid change?
I happen to have a couple of quarts of Mobil 1 75w-90 LS differential fluid in the garage. I saw on another post that "LS" is not needed if I have the AAM axle. I have the AAM with a 3.73 ratio. Not sure if it is the 11.25 or something else though. Can I use this? Does it really cause any problems or should I go buy 4 new quarts of regular 75w-90 synthetic gear oil. Thanks for any replies.
#3
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It will cause no problems. Some people add LSD additive anyway. The say it helps stop the chatter some folks get when everything get's hot during a heavy pull.
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Thanks for the input. You are right 1-2-3. I checked and all the part stores around here only sell the LS type also. I bought a couple more quarts and will put it in tomorrow. I also learned from this site that I have the AAM 11.5 differential. This forum is great
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