Gearbox oil + diff oil on CQ20V 7A

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  • Tom_
    S2Forum Extremist
    • Oct 2007
    • 1301
    • Country: Czech Republic

    #1

    Gearbox oil + diff oil on CQ20V 7A

    Hello guys, i decide to change oil in diff and in 5spd gearbox on my Coupe Quattro 2.3 20V. But i am not sure whats the right specifications of oils. I read something on 20v.org

    Rear Differential
    0.8 quart of synthetic GL-5 hypoid oil, which corresponds to Redline's 75W90

    Transmission/Front Differential
    Synthetic GL-4 75W/90 oil is shared by the transmission, front diff., and the TORSEN center diff. DO NOT use GL-5 oil in the tranny!



    but amsoil plan http://www.amsoil.com/mygarage/vehic...90%20QUATTRO+R

    Rear Differential
    GL-4

    Manual Transmission,01A (5-SPD).....
    SL148 - GL-4



    FUCHS -




    So now i am little bit confused and i do not do a mistake with oils...Any suggestions? I want to be a 100% sure of the right choice....27 years old car is 27 years old car

    Thank you
    Last edited by Tom_; 6 February 2023, 16:22.
    Audi Coupe Quattro 2.3 20V
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