VP C12 is the best all around racing fuel ever made. We recommend it for compression ratios up to 15:1, which satisfies the needs of 75% of today’s automotive race engines. One of the winningest fuels in racing history, C12 has been the preferred fuel for drag, circle track, and road racers in North America and around the world. It's also the best all-around two stroke fuel. Works great in vintage air cooled two strokes as well as new engines.