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Manual Transmission Fluid

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  • Transmission / Overdrive: Manual Transmission Fluid

    What type of fluid does my Avanti's 4-speed manual transmission utilize? Thank you.
    Mike - Assistant Editor, Turning Wheels
    Fort Worth, TX

  • #2
    Good quality SAE 90 or 85-90.

    Comment


    • #3
      The GL rating is THE MOST important, not so much the weight or Brand of Gear Oil, you need non-EP (non-extreme pressure) GL-1 85/90 or 90 Wt. from NAPA Stores, NOT GL 4 or 5 or ANY combination thereof.
      StudeRich
      Second Generation Stude Driver,
      Proud '54 Starliner Owner
      SDC Member Since 1967

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      • #4
        I use redline mt90. Works great with no problems
        78 Avanti RQB 2792
        64 Avanti R1 R5408
        63 Avanti R1 R4551
        63 Avanti R1 R2281
        62 GT Hawk V15949
        56 GH 6032504
        56 GH 6032588
        55 Speedster 7160047
        55 Speedster 7165279

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