4-Stroke Full Synthetic 10W-30 Motorcycle Oil is formulated with advanced technology and superior additives for better engine cleanliness, durability, and enhanced friction protection. It now delivers up to 5X better durability vs. industry standards in IVA engine tests and up to 20% better engine cleanliness vs. typical API SL quality engine oil in Honda XR250 engine test. Valvoline’s improved full synthetic formula is designed to help your bike run at peak performance. From sport bikes and V-Twins to cruisers and off-road bikes, count on it for excellent protection in 4-cycle motors. Engineered to lubricate not only the motor but also the clutch and the gearbox, Valvoline goes above industry standards with up to 10x better friction protection for maximum power transfer & smooth shifting in wet clutch transmissions vs. JASO T903:2016 friction std. Whether you ride the Harley Davidson Sportster, Yamaha R6, Ducati Scrambler, Honda CRF or Suzuki GSX to name just a few, Valvoline Full Synthetic 4-Stroke Motorcycle Oil brings out the best in your bike.