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Thread: Diff fluid for Miata

  1. #1
    Join Date
    Sep 2006
    Posts
    23

    Question Diff fluid for Miata

    Changing diff fluid in my ITA 94 Miata. Want to go to the lightest Red Line fluid I can get away with.

    Anybody got a recommendation/bias/prejudice/horror story?
    Lea Williams, Santa Fe, NM - ITA '94 Miata
    Champion, 2007-2008, SCCA Rocky Mtn Div ITA

  2. #2
    Join Date
    Sep 2005
    Posts
    1,489

    Default

    since you have a torsen, i would probably just go with Redline Shockproof, i think it's a 75-90. i think the Mobil 1 75-90 at the parts store would be fine also.
    Travis Nordwald
    1996 ITA Miata
    KC Region

  3. #3
    Join Date
    Jan 2004
    Location
    Camas, WA
    Posts
    531

    Default

    Quote Originally Posted by leawil View Post
    Changing diff fluid in my ITA 94 Miata. Want to go to the lightest Red Line fluid I can get away with.

    Anybody got a recommendation/bias/prejudice/horror story?
    sure. redline sucks. torsen = heat and thin crappy-ass redline will burn.

    motul or swepco only.

    full disclosure: i was sponsored by motul last year.
    i still ran swepco in the diff. 3 to 25 hour enduros only.

    marcus
    Marcus
    miller-motorsports.com - Its always an Adventure (and woefully outdated)
    1.6 ITE/SPU/ST2 Turbo Miata (in pieces... err progress)

  4. #4
    Join Date
    Sep 2005
    Posts
    1,489

    Default

    Quote Originally Posted by Marcus Miller View Post
    sure. redline sucks. torsen = heat and thin crappy-ass redline will burn.

    motul or swepco only.

    full disclosure: i was sponsored by motul last year.
    i still ran swepco in the diff. 3 to 25 hour enduros only.

    marcus
    marcus i think you have your 1.6 and your 1.8 diffs mixed up.

    torsen goes in the 1.8 and pretty much never fail. the mazdacomp clutch types blow up like an M80 on the fourth of july.

    anything will burn in a 1.6 diff.
    Travis Nordwald
    1996 ITA Miata
    KC Region

  5. #5
    Join Date
    Jan 2004
    Location
    Camas, WA
    Posts
    531

    Default

    Quote Originally Posted by tnord View Post
    marcus i think you have your 1.6 and your 1.8 diffs mixed up.

    torsen goes in the 1.8 and pretty much never fail. the mazdacomp clutch types blow up like an M80 on the fourth of july.

    anything will burn in a 1.6 diff.
    We actually burned up redline in the torsen also, 4 hours at sears point, in the rain. i didn't drive that event, but i would have to assume tire spin did it
    Marcus
    miller-motorsports.com - Its always an Adventure (and woefully outdated)
    1.6 ITE/SPU/ST2 Turbo Miata (in pieces... err progress)

  6. #6
    Join Date
    May 2008
    Posts
    4

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