Motorcycle 4 Stroke PAO & Ester 10W-30 is a superior performance premium engine oil with the latest Additive technology including FULL Zinc + (exceeding 1800+ PPM levels) for maximum engine, gearbox & Clutch protection against wear, corrosion, oil oxidation, piston deposits and sludge under all conditions. Motorcycle 4 Stroke PAO & Ester 10W-30 meets the requirements of API SN/CF and JASO MA.