Back in the day my mom had a Ford Explorer that the valves pinged like crazy in. Put some Marvel Mystery Oil in it and it never made a sound. Stuff does do wonders however I don't believe it's safe for 2-strokes.
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Current boat(s):
1985 V-20 Cuddy/ 470 IB/OB
1972 Egg Harbor 38’ Sedan/ 454 Crusaders
Last edited by 3 Squids; 07-08-2016 at 07:03 AM.
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