The introduction of the world’s first synthetic motor oil to meet American Petroleum Institute service requirements in 1972 set all-new standards for motor oil quality. AMSOIL synthetic motor oil outperformed conventional petroleum motor oils on all counts. It was clear from the start that this innovative product would play a major role in engine performance and engine life. That tradition of innovation and technological advancement carries on with AMSOIL Synthetic Motorcycle Oil. It is engineered to withstand the devastating effects of extreme heat. It features exceptional high-temperature film strength for maximum wear protection and delivers excellent wet-clutch performance and transmission protection. AMSOIL Synthetic Motorcycle Oil helps keep your bike operating at peak efficiency for the long-haul.