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    4-Cycle oil in 2-cycle outboard

    I mistakenly put 4-cycle 10W-30 Pennzoil "Premium Outboard" marine oil into 12 gallons of gas for a 2 cycle Johnson 90HP outboard engine. Should I cut my losses and drain the gas tank, or will permanent damage result if I ran the engine on this fuel mixture? If I run the current mixture...
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