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Thread: Gear case oils

  1. #1

    Default Gear case oils

    Went to boat store & got handed Mercury 80-90 gear lube for my "1962 40HP" motor on my 1967 Starcraft. Didn't seem right to me so I passed on it. Can't seem to find "Johnson Hi-Vis or Ultra-HPF" that it calls for. Any alternatives or just keep looking?

    You have been great with me asking probably what seems to be dumb questions but I love these old machines & don't want to screw it up..

  2. #2
    Join Date
    Sep 2010

    Default Re: Gear case oils

    You should have taken the MERCURY oil and put it in your lower unit !!!

  3. #3

    Default Re: Gear case oils

    Just being safe thank you

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