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What would be the proper fuel mixture for a 1985 40hp merc outboard?

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What would be the proper fuel mixture for a 1985 40hp merc outboard?

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  1. 16 oz of 50 to 1 for 5 gallons of gas.


  2. These were designed to use 40 to 1 mixture.

    You can even use the modern 50 to 1 oils if they are rated at 50 to 1.

  3. 50 to 1.  Be sure to use a 2 cycle oil rated "TCW 3".
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