Back to Marvel mystery.... I started using it back about 1972 in my Yamaha 2stroke desert racing motorcycle. The oil we used back then was really dirty. MMO helped keep the piston and rings clean. Really worked well. I used it in my outboards on my fishing boats for the same reason. Now I also use it in my gas powered RC airplanes, along with good quality oil in the mix. A little bit in the tank of my Honda dirt bike gives the fuel a nice red tinge. A few capfulls in the gas for the rest of my vehicles.... Gives me that warm fuzzy feeling!
