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Thread: Which differential oil?

  1. #1
    Join Date
    Sep 2004
    Location
    Iowa
    Posts
    6

    Default Which differential oil?

    I have a 2002 530. I believe that BMW uses/recommends Castrol SAF-XO or SAF-XJ (if limited slip differential), which seem to be available only from delaler service departments.
    Does this car have a limited slip diff? I think not, but am unsure.
    Is it encessary to use the dealer supplied gear oil or could I just use Mobil1 75w90? It has nearly identical specs (density, viscosity index, etc) according to manufacturer web sites.

  2. #2
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,709

    Default

    if the M1 is the same weights than it should be safe to use, non synthetic is a no-no.
    95 E34 530I V2.34
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

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