Castrol POWER1 4T Full Synthetic Motorcycle Oil with Power Release Formula is designed specifically for bikers who love the exhilaration of riding. Castrol POWER1 Full Synthetic Motorcycle Oil is an advanced, synthetic, premium quality engine oil designed for 4-stroke motorcycles. It has been tested and proven to deliver superior acceleration at the touch of the throttle as it flows fast and minimizes internal engine friction. Exceeds industry specifications API SL and JASO MA-2 standards   Castrol Power1 4T 10W-50 Full Synthetic Motorcycle Oil   To learn more about Castrol's products and helpful tips, please visit www.castrol.com/us.