Brand new, genuine Yamaha 2M MARINE 2 STROKE OIL GALLON. This is a factory original equipment lubricant, not aftermarket. Semi-synthetic formula containing a special blend of additives to help protect against ring stick, corrosion, varnish, and wear in water-cooled two stroke engines. Developed for Autolube Oil Injection Systems used on all 2-cycle air and liquid cooled gasoline engines. Dramatically reduces smoke and carbon deposit build-up Yamalube 2-Cycle TCW3 Engine Oil - 1 Gallon