Yamaha Yamalube 4M 4-Stroke Outboard Engine Oil, Quart

Semi-synthetic oil with an exclusive additive blend works to guard against ring stick and carbon buildup. This oil is designed for the most grueling conditions, whether it's full-throttle operation, engine-punishing, out-of-the-hole acceleration, or long-hour trolling. Oil formula provides the highest level of rust and corrosion protection and superior lubrication to prevent wear on engine components.