Hardworking 4-stroke motors operate in extreme environments and run at higher RPMs than automobile engines. Whether you're riding rugged trails or snow-covered hills, Valvoline Ultimate Powersport Full Synthetic 4-Stroke Motor Oil provides premium performance and protection in all climates and conditions. Formulated specifically for the unique needs of small engines and powersport vehicles, it's suitable for ATVs/UTVs, personal watercraft, and snowmobiles. The extra torque and heat in a 4-stroke can push the engine and motor oil to the limits. With 50% stronger wear protection and up to 8X better rust defense than industry standards, Valvoline full synthetic 4-stroke oil is proven to maximize engine life. Your recreational vehicle calls for an oil upgrade. Ultimate Powersport Full Synthetic 4-Stroke Motor Oil from Valvoline – the trusted motor oil brand for more than 150 years.