Motul 510 2T Two-Stroke Oil For use on any high RPM 2 stroke engines. Suitable for injector systems or premix, leaded or unleaded gasoline. Synthetic base with very high combustion properties which minimize engine deposits and smoke. Compatible with catalytic converters. Features Specially designed for motorcycle and moped 2 stroke engines Synthetic anti-smoke formula Safe for use with catalytic converters Can be mixed with all types of gasoline