Originally Posted by Pablo

I doubt it will hurt anything if used at the recommended dose. Should be 100% combusted. Not sure how much it will help in a pre-mix with fresh gas and good oil. Will it help burn the fuel or take the place of the fuel? Will it lubricate or take the place of the oil. Personally I'm not a believer in Marvel Mystery Oil. What do they say about use in 2-stroke pre-mix?