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Thread: Oil grades for marine engines vs. auto engines?

  1. #11
    Super Moderator OLD HOUSEBOATER's Avatar
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    Oct 2002
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    They took zinc out of most motor oil years ago.
    The fries are cold so we gave you extra.

  2. #12
    Senior Member easttnboater's Avatar
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    They reduced it a lot. You can buy the additive or there are specialty oils that have the "original" levels of zinc in them.

  3. #13
    Super Moderator OLD HOUSEBOATER's Avatar
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    A lot of people like Valvolene VR1 for their flat tappet engines.
    The fries are cold so we gave you extra.

  4. #14
    Senior Member 42gibson's Avatar
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    Nov 2010
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    i dont use any synthetic in the boat.
    44 gibson executive
    on the muskingum river & ohio river
    marietta,ohio

  5. #15
    Senior Member GoVols's Avatar
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    Aug 2011
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    Nashville, TN
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    Well, the weather cooperated for the 1st time in over a month, so I finally changed the oil over the weekend. I used the electic oil pump gismo that my brothers bought me for X-mas this last year, which made this job a sinch. I don't know how I over extimated the total amount of oil I needed, but I bought 1 too many gallon containers of Honda Marine oil to the tune of $26. I checked the dip sticks after I ran the motors for a few minutes and each is right on the money. I'm going to call back the shop and see if I can return the container b/c I don't plan on changing the oil until Spring of '15 - I don't use the motors enought to justify annual changes, but I'll play it by ear.
    '06 Sailabration located on Percy Priest Lake

    Bet On Another Thousand

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