1965 rear end oil - NCRS Discussion Boards

1965 rear end oil

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  • Rick Hendel

    1965 rear end oil

    I have a 1965 coupe 300hp with posi. What is the proper wieght oil for replacment and is there any additives to be put in for the posi. traction. Thanks
  • Joe C.
    Expired
    • August 31, 1999
    • 4598

    #2
    Re: 1965 rear end oil

    85W-90 is for normal use. I would use the GM posi supplement and you must add posi supplement. It doesn't hurt to add 2 bottles instead of one.
    I am using Valvoline 85W-140, with 2 bottles GM posi supplement added.

    Joe

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