AMSOIL 0W-50 100% Synthetic ATV/UTV Motor Oil

Available sizes

AMSOIL 0W-50 100% Synthetic ATV/UTV Motor Oil

AMSOIL 0W-50 100% Synthetic ATV/UTV Motor Oil is a purpose-built synthetic for Polaris Ranger, RZR, Sportsman, and General machines that specify a 0W-50 motor oil, plus other ATV and UTV applications looking for 0W cold-start flow paired with SAE 50 hot-temperature protection. The formula meets API SL and JASO MA and is a high-performance alternative to Polaris PS-4 Extreme Full Synthetic 0W-50 Engine Oil. It is built for riders who plow snow, run winches and skid plates, tow trailers, and push aggressive trail or dune runs where a 10W-50 would gel at cold start and a thinner grade would shear out under heat and load.

Cold-start flow for sub-zero starts

The 0W base oil keeps oil flowing in deeply cold temperatures so the wear-vulnerable seconds at startup are protected. The pour point is -48 C (-54 F) by ASTM D97, the lowest of any grade in the AMSOIL ATV/UTV Motor Oil line. That cold-flow margin matters for winter Polaris owners, ice-track use, snow-plow operators, and cold-stored utility machines that have to fire and load up immediately on a cold morning.

SAE 50 hot-temperature protection

The 0W-50 grade carries true SAE 50 hot viscosity, with a kinematic viscosity of 19.4 cSt at 100 C (ASTM D445) and a high-temperature high-shear viscosity of 5.0 cP at 150 C (ASTM D5481). That hot-side film thickness gives heavily loaded engines reserve protection during hot summer service, towing, plowing, and dune work. The 0W-50 also acts as an all-season replacement in applications that would normally switch to a 10W-50 for summer service, eliminating a seasonal oil change.

Wear protection for high-revving, severe-service engines

UTV engines run at high rpm under heavy accessory load, often inside shrouded engine bays that trap heat. The synthetic chemistry pairs reserve thermal protection with anti-wear additives that deliver a Four-Ball Wear scar of 0.53 mm by ASTM D4172 at 150 C, 1800 rpm, 40 kg, and 1 hour. That margin holds up when the machine is loaded with skid plates, winches, plows, roof and door panels, or aftermarket cab enclosures that block cooling airflow.

Shear and oxidation stability

The 0W-50 formula resists thinning from extreme heat and mechanical shear so the rated viscosity stays in the working range across the full drain interval. A viscosity index of 191 (ASTM D2270) reflects a flat viscosity curve from cold start to operating temperature. NOACK volatility is 6.7 percent (ASTM D5800), and the flash and fire points are 220 C (428 F) and 230 C (446 F) by ASTM D92, so the oil resists evaporative loss in shrouded high-temperature service.

Wet-clutch friendly, no friction modifiers

JASO MA certification confirms the formula is built to run in shared-sump engines with a wet clutch and gearbox driven off the same oil. The 0W-50 contains no friction modifiers, so it promotes positive clutch engagement without slippage, fade, or chatter, and it helps keep clutch temperatures under control to extend friction-plate life. Riders get consistent clutch feel during takeoffs and slow-speed obstacle work, where a passenger-car oil with friction modifiers would slip and glaze.

Heat control in shrouded UTV engines

UTV powertrains often sit in tight engine bays with limited radiator and oil-cooler airflow, especially on machines run with cab enclosures or full-skid setups. The synthetic base oils carry heat away from the ring belt and bearing surfaces and resist oxidation, sludge, and varnish under those operating conditions. That helps maintain piston-ring sealing and oil-cooler flow on machines that work hard at low ground speeds, including plow trucks and winch-and-tow rigs.

Recommended applications and service intervals

0W-50 100% Synthetic ATV/UTV Motor Oil (AUV05) fits ATVs and UTVs that specifically call for a 0W-50 motor oil. The application coverage from the data bulletin is:

• API SL and JASO MA wet-clutch service in ATVs and UTVs that specify a 0W-50 motor oil.
• High-performance alternative to Polaris PS-4 Extreme Full Synthetic 0W-50 Engine Oil in Polaris Ranger, RZR, Sportsman, and General models that specify the 0W-50 grade.
• Year-round use in applications that recommend switching to a 10W-50 in hot weather, removing the seasonal grade swap.
• Severe-service use including plowing, towing, winching, dune and trail riding, and machines modified with skid plates, roof and door panels, winches, plows, or cab enclosures.

Service life follows the original equipment manufacturer oil-change recommendation. The formula is compatible with other conventional and synthetic motor oils, but mixing shortens oil life and reduces performance benefits, and extended drain intervals are not supported when oils have been mixed. Aftermarket oil additives are not recommended for use with this oil. Pair the oil with a quality wet-clutch ATV and UTV oil filter and follow OEM filter and oil-capacity specifications.

Typical technical properties

Order AMSOIL 0W-50 100% Synthetic ATV/UTV Motor Oil

0W-50 100% Synthetic ATV/UTV Motor Oil is available in quart bottle (AUV05QT-EA) and case of 12 quarts (AUV05QT-CA). Using AMSOIL synthetic lubricants does not void a new vehicle or equipment manufacturer warranty, and the product is Warranty Secure and backed by the AMSOIL Limited Warranty. Confirm application match for the specific make, model, and year with the AMSOIL Vehicle Lookup Guide, compare grades and JASO classifications with the ATV Oil Guide, then order AMSOIL 0W-50 100% Synthetic ATV/UTV Motor Oil.

Frequently asked questions