Quote:
Originally Posted by Delighted_Jester
As for your G4 vs GL4 question- G4 is BMW name of their own fluid. GL4 is industry standards. As for the front diff, according to my G20 manual, BMW calls for axle oil G2 for all cars except E53 and E83 w/o N46. The rear axle is G4 for M sport differentials.
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Thanks for that. BMW just had to make it confusing by using a very similar naming haha. Maybe I’ll just go with redline 75w85 for front and rear since it’s compatible with bmw g1-4