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  1. #1

    Default Mariner 40 2 str.2002 oil:gas mix?

    I was told originally to use 100:1 however others tell me they prefer .50:1 but noticed this made plugs oily. Newer outboards all seem to use 100:1?

  2. #2
    Join Date
    Apr 2016
    Location
    barnegat NJ
    Posts
    2,707

    Default Re: Mariner 40 2 str.2002 oil:gas mix?

    TRy 75-1 Its worth atry but 100-1 is recommended. If engine runs well at 50-1 the extra lubrication can not hurt it.

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