J
I knew about Marvel Mystory Oil as a kid. I started using it in the early 1970’s. I used it in my 48 Buick Roadmaster, used it in my Cummins 5.9 Diesel. I never used it on my motorcycle. Probably because the synthetic oils today are far more superior to the motor oils from the 1940’s, 1950’s and so on. The M M Oil is very good for the valve stems and seals. In the motor oil it was used to loosen up the rings from the pistons. Today’s synthetic oils do just that, but there’s no harm in using the legendary oil today.I've been running Marvel Mystery oil in the gas and @ a week before an oil change I add 2 cups. Stuff is wonderful. I sure wish it tasted better, used some on a hosebag I know....
Some kind of a Sea Foam revolt going on here?!!?