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S4 gearbox oil?

Discussion in 'A4/S4 forum(B5 Chassis)' started by Tuffty, May 7, 2008.

  1. Tuffty

    Tuffty Member

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    Does anyone know what oil should be in a s4 6 speed and diff? and what about the rear diff?
    I know these arn't really service items but i've come from the world of evo's where you have to change them every 2 miles so i'm kinda in the habbit of over servicing cars.
     
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  3. Broken Byzan

    Broken Byzan Photographic Moderator
    Staff Member Moderator VCDS Map User Audi A4 quattro

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    75/90 full synth i just put in my 6 speed. Its a millers oil i used and they are known to be good( should be @ £10 per litre,lol )
     
  4. smitch

    smitch Active Member

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    Not sure about the best oil for Audis but i put some Swepco gdearbox oil in my old '77 911 and it transformed the clunky old 915 gearbox.
     
  5. jonnya

    jonnya Member

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    You need 75w90 fully synthetic. The manufacturer specifies GL4 but you will probably
    be better off with GL 4/5 (note, NOT plain GL5 as the EVP additives in GL5 will eat your
    synchros). I've hear good things about Millers CRX. However, a lot of places will tell you
    to just go OEM. Speak to someone like MRC and see what they recommend.
     
  6. Tuffty

    Tuffty Member

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    I used millers CRX in my Evo and found it to be good, but to be honest for the sake of messing about finding one which will do the job I may as well just buy the OEM stuff, just as well I get trade at £12+ vat per litre tho !
     

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