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Thread: Transmission OIL: redline MT90 75w90 rx8/rx7 fd

  1. #11
    juanjux
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    I don't know about the Motul, most of the guys over here are using wahtever Mazda puts, Red Line or Idemitsu. Motul is a great brand, but so is Royal Purple and it eats our car trannies, but you could read a little about it on the other forum: http://www.google.com/search?hl=en&q...om+motul+75w90
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  2. #12
    PhillipM
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    Millers CRX75w-90NS is a great oil for syncromesh 'boxes, works well in the Pug MA gearboxes which are very fussy about oil.
    -------------------------------------------------------------------------------------------------------------------------------------

    243.6bhp to the tarmac. Now, where can I find some tarmac?
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  3. #13
    TeamRX8
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    I don't know how readily available it is on the Eutopean continent, but here in the USA the Ford Motorcraft XT-M5-QS full synthetic GL4 trans oil gives you the same warm temp performance as Redline MT-90 without the cold temp issue. It's generally being accepted as the best GL4 trans oil available. The best part for me is I can buy it at the local Ford dealership. It generally costs $17 - 20 USD per quart.
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  4. #14
    bse
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    'Murica beats Europe this time...
    I couldn't find that oil listed anywhere!
    Milk the mad cow!
    Quote Originally Posted by PhillipM View Post
    You don't need a reason, just some steel, a welder and bloody big hammer!
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