We design MR12 to make maximum power in four stroke dirt or street bikes with stock or mild modifications. In fact, this is VP’s best fuel yet for 4-stroke applications that can tolerate lower octane values. MR12 fuel has met fuel rules for AMA Pro/Am, CCS, WERA, NMA, WORCS, SCORE and Best in the Desert as well as club level racing and more. As regulations are ever changing, we recommend checking with tech to be sure.
For maximum performance and protection, be sure to check out VP's line of racing motor oil and lubes