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| Message: | I've searched the archives for info on changing the differential fluid on my '03 M3. Mine sounds bad for the first two or three turns every morning. Anyone want to set the record straight? Thanks in advance, Nick Vick Only pertinant previous post found is: > Almost all differential failures are caused by the dealers who > have used the wrong differential oil at service. > > The only approved oil is Castrol SAF-XJ 75W/140 for the limited > slip differential in the M3. > > For E46 M3 produced before 9/2001 there is a specially formulated > differential oil to be used during break in but after this should > you use the regular SAF-XJ differential oil. > > RS2 | ||||