4Fully Synthetic 4-stroke motorcycle oil is a lubricant designed specifically tor motorcycle engines, combining high-performance, fully synthetic base stocks with a precisely balanced formulation to help provide excellent engine cleanliness, outstanding anti-wear protection in high-temperature environments, and highly effective corrosion protection, maintain maximum engine power output, and provide unmatched performance in harsh year-round operating conditions, mild or severe driving environments, and on the racetrack. Provides unrivaled performance in tough year-round operating conditions, mild or severe driving environment