Marvel Mystery Oil in gas

Marvel Mystery Oil in all my motor's gas tanks.

I use Marvel Mystery Oil in my gas in all my motors. I do not use in the oil. Am I wasting my money, does it really clean and lubricate the top end of the engine?

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scurfie
scurfie

YIKES! Ok thanks, Scotty!

ScottyKilmer
ScottyKilmer

Editor

it can lube, yes. But also can ruin the catalytic converter over time



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