Thread: oil ratio
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Old 07-02-2009, 05:30 PM
BillPutney BillPutney is offline
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Join Date: Oct 2005
Location: Eastern North Carolina
Posts: 141
Default oil ratio

What is the correct oil/gas ratio for a 91 70 hp. Mercury outboard. The boat belongs to a friend that just bought it from a mechanic who told him to put double the normal amount of oil for the first tank and 1.5 times the amount on the second tank during break in period.
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