AMSOIL 10W-40 Synthetic ATV/UTV Motor Oil is recommended for use in Can-Am®, Kawasaki®, Suzuki®, Honda®, Yamaha®, Kubota®, John Deere® and other ATVs and UTVs that require a 10W-40 motor oil. AMSOIL 5W-50 Synthetic ATV/UTV Motor Oils is recommended for use in ATVs and UTVs that require a 5W-50 motor oil, including the Polaris® Ranger®, RZR® and Sportsman®. Use in place of Polaris PS-4 and PS-4 Extreme Duty.