5W-50 Synthetic ATV/UTV Motor Oil

5W-50 Synthetic ATV/UTV Motor Oil Delivers Upgraded Performance & Protection AMSOIL Synthetic ATV/UTV Motor Oil is formulated to deliver upgraded performance for hard-working and performance ATVs and UTVs. Its outstanding severe-service formulation allows riders to confidently and safely push their machines to the limit, whether tackling tough chores around their property or riding aggressively on the trail.

SKU: AUV50 Category:

5W-50 Synthetic ATV and UTV Motor Oil

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AMSOIL is light years ahead of the competition especially when it comes to OEM labeled products. See for yourself the performance difference. The ATV/UTV line includes 45+ years of custom oil designing and special relationships within the industry to bring our customers the best available. Nothing is ever held back to cater to stockholders on profit margins and this is why AMSOIL can make products which really work as well as they do! Don’t fall for the pressure of the OEM. As a bonus you save $ on the product as well as maintenance down the road but it’s really all about the performance we deliver!! 

AMSOIL’s 5W-50  synthetic technology protects hot, high-revving engines against wear. AMSOIL Synthetic ATV/UTV Motor Oil is Warranty Secure™ and will not void your ATV or UTV warranty. It is a cost-effective, high-performance alternative to original equipment manufacturer (OEM) fluids.

Severe-Service Engine Protection

Many enthusiasts modify their ATVs or UTVs with roof and door panels, skid plates, a winch, a plow or other accessories that add weight and increase the severity of operation. Aggressive riding and tackling tough terrain place additional stress on the engine. Increased heat generated during severe-duty operation causes oils designed for standard service to break down sooner, increasing the risk for wear. AMSOIL Synthetic 5W-50 ATV/UTV Motor Oil’s synthetic technology delivers reserve protection against heat. It provides reliable wear protection and aids in cooling shrouded engines.

Superior All-Weather Performance

AMSOIL 5W-50 Synthetic ATV/UTV Motor Oil provides superior protection during hot summers and cold winters. Its durable synthetic design makes it ideal for applications calling for either 5W-50 or 10W-50 oils.  If you need a 50 viscosity oil, you are better off with the one real synthetic. Our molecular structures are smoother unlike the petroleum based OEM products. So you don’t lose power to a higher viscosity.  

Wet-Clutch Compatible

AMSOIL Synthetic ATV/UTV Motor Oil contains no friction modifiers and promotes smooth shifting and positive clutch engagement. It controls heat and helps improve clutch life.


AMSOIL Synthetic ATV/UTV Motor Oil underwent on-track testing in the ATVs and UTVs of AMSOIL-sponsored professional riders in the AMSOIL GNCC Series. It is fine-tuned for outstanding wear protection and consistent clutch feel.

  • Protection for demanding chores and terrain
  • Delivers consistent clutch feel
  • Superior all-weather performance
  • Wet-clutch compatible

Premium, Purpose-Built Alternative

AMSOIL 5W-50 Synthetic ATV/UTV Motor Oil is formulated specifically for use in Polaris® Ranger®, RZR® and Sportsman® UTVs and ATVs. It offers a cost-effective, high-performance alternative to OEM-branded fluids.


AMSOIL 5W-50 ATV Synthetic (ATV/UTV) Motor Oil is recommended for use in ATVs and UTVs that require a 5W-50 motor oil, including the Polaris Ranger, Polaris RZR and Polaris Sportsman. AMSOIL recommends 5W-50 Synthetic ATV/UTV Motor Oil in place of Polaris PS-4 and PS-4 Extreme Duty.

SERVICE LIFE of the 5W-50 ATV oil

Follow the original equipment manufacturer’s oil change recommendation.

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AMSOIL Synthetic 5W-50 ATV/UTV Motor Oil is Warranty Secure™, keeping your factory warranty intact. AMSOIL Synthetic ATV/UTV Motor Oil is a high-performance replacement for vehicle manufacturer-branded products and is also backed by the AMSOIL Limited Warranty (G1363). For details, visit AMSOIL Warranty Information.

Secure for Warranty & OEM use

Secure for Warranty & OEM use

This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Safety Data Sheet (SDS). An SDS is available online at www.amsoil.com or upon request at (715) 392-7101. Keep Out of Reach of Children. Recycle used oil and bottle.


Kinematic Viscosity @ 100°C, cSt (ASTM D445) 20.2
Kinematic Viscosity @ 40°C, cSt (ASTM D445) 128.6
Viscosity Index (ASTM D2270) 180
Flash Point °C (°F) (ASTM D92) 238 (460)
Fire Point °C (°F) (ASTM D92)250 (482)
Pour Point °C (°F) (ASTM D97)-43 (-45)
Four-Ball Wear Test @ 40 kgf, 75ºC,
1200 rpm, 1 hr, scar diameter, mm (ASTM D4172)
NOACK Volatility, % weight loss (g/100g) (ASTM D5800) 5.7
High Temperature/High Shear @ 150°C and 1.0 X 106s-1, cP (ASTM D4683), cP5.5

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