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Thread: E46 Differential Fluid Change?

  1. #1
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    E46 Differential Fluid Change?

    What fluid do you guys like to use for the rear differential service?

    I've always used the Mobil 1 as it's cheap ($10) and available everywhere.



    link: https://youtu.be/VoZOvgP6Pag

  2. #2
    Join Date
    Jul 2011
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    Redline 75W90 for non-limited slip differentials. Period. You’ll need exactly a quart. Remove the fill plug before you drain the fluid. Why? Let’s say you drain the fluid and can’t get the fill plug out. Ooooops.

  3. #3
    Join Date
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    18 LCI M2 BSM MT
    I've been putting M1 in mine for years. It weeps fluid from a few places so it needs a couple ounces ever couple months

  4. #4
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    2004 325XI/2008 GL320
    M1 75w90 here in my BMW and Mercedes. No issues. Ever

  5. #5
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    For our BMW, Castrol products or OEM. I've never had good luck with M1 products with our BMW's.
    Regards

  6. #6
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    Quote Originally Posted by por911 View Post
    For our BMW, Castrol products or OEM. I've never had good luck with M1 products with our BMW's.
    Regards
    Interesting, I've never had any issue with M1 products. Been using them for 16 years

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