AMSOIL Synthetic Motorcycle Oil provides premium protection for the unique demands of big cruiser bikes, ensuring cool operation and reliable protection and performance, both on the open road and in stop-and-go traffic. AMSOIL keeps your bike running smooth and strong on the open road, providing maximum protection, performance and fuel economy. Reliability is extremely important on the open road. Nothing ruins a motorcycle trip quicker than an unexpected roadside breakdown. AMSOIL is formulated to keep touring bikes well-protected and operating at peak performance and maximum fuel efficiency. Large-displacement, air-cooled, low-revving cruiser bikes run notoriously hot, placing unique and stringent demands on the lubricants that protect them. AMSOIL Synthetic Motorcycle Oil is formulated to keep hot-running V-twin and metric cruiser bikes running cool and operating at peak performance, whether cruising down the highway or showing off your ride at the rally.