1967 Mercury Merc 60 6hp Gearcase Lube/Oil?

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  • February 25, 2018 at 12:39 pm #9298
    silvab7232
    Participant

      Hello, I have a 1967 Merc 60 6hp and I was wondering what gear lube I should put in the gearcase? Is there a difference Between gearcase grease or actual oil. I’m not sure the correct kind to put in my Merc. Right now I have some fresh super tech marine SAE 80W-90 loser unit gear lube and wondering if maybe that’s will work? Thanks!

      February 25, 2018 at 12:48 pm #71572
      jerry-ahrens
      Participant

        US Member

        I think that would be fine. Check it after running a few times to see if it’s milky. If so, you are getting a little water in from somewhere.

        February 25, 2018 at 2:45 pm #71587
        dave-bernard
        Participant

          US Member

          If you get water in it use John Deer Cornhead grease. those motors had Driveshaft that would pit. if you decide to reseal use a speedi sleeve to repair the Driveshaft.

          February 25, 2018 at 3:03 pm #71589
          westwind
          Participant

            Canada Member

            80/90 gear oil is what Merc recommended.

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