Snowmobiles are exposed to extremely cold and wet conditions that can quickly destroy both lubricants and the components they protect. AMSOIL snowmobile products are engineered to deliver superior protection and maximum performance that unleashes the full potential of your snowmobiles, even in the most extreme winter conditions.

AMSOIL Formula 4-Stroke® Powersports Synthetic Motor Oil
Conventional oils thicken in freezing temperatures, limiting their ability to lubricate and protect until the engine warms up.
Formula 4-Stroke flows smoothly at subzero temperatures to ease cold starts, inhibit engine wear and help extend four-stroke engine life.
- Easy cold-weather starts.
- Fast startup protection.
- Inhibits corrosion and wear.
- Maximizes power and performance.
We pushed the limits of a Yamaha Sidewinder LTX.* Watch the video to see how AMSOIL Formula 4-Stroke performed.
AMSOIL INTERCEPTOR® Synthetic 2-Stroke Oil
Modern two-stroke snowmobiles are designed to burn less oil, which generates extreme heat that conventional oils simply can’t handle. The deposits left by burned oil reduce performance and cause accelerated wear.
INTERCEPTOR burns cleanly, preventing piston-ring sticking, piston scuffing and exhaust-power-valve sticking to maximize the performance and life of your two-stroke snowmobile.
- Prevents fouling and sticking.
- Minimizes smoke and emissions.
- Maximizes power and performance.
- Inhibits wear and corrosion.
We tortured a Ski-Doo 850 E-tec Turbo R.* Watch the video to see how AMSOIL INTERCEPTOR performed.
AMSOIL DOMINATOR® Synthetic 2-Stroke Racing Oil
Racing sleds generate intense heat and extreme pressure that can exceed the protective ability of standard oils.
DOMINATOR is formulated with heavier base oils to protect boosted race engines facing the extreme demands of podium chasing. The unmatched level of engine protection has been race-proven in championship-level competition.
- Protects pistons and rings.
- Boosts torque and power.
- Extends engine life.
- Podium proven.
A pro racing sled lost all its engine coolant and melted the exhaust power valve covers, O-rings and gaskets. DOMINATOR protected the engine internals and the team was able to reuse the engine after replacing the melted parts. Watch the video to see how AMSOIL DOMINATOR performed.
Visit our Snowmobile Lookup Guide to quickly find the best AMSOIL products for your Arctic Cat,* Polaris,* Ski-Doo* and Yamaha* snowmobiles, or check out the complete line of AMSOIL snowmobile products.

AMSOIL Synthetic 2-Stroke Injector Oil
Perfect for casual snowmobile riders who don’t require the superior performance of INTERCEPTOR or DOMINATOR.
- Prevents fouling and sticking.
- Extends injector life.
- Maximizes power and performance.
- Inhibits wear and corrosion.
AMSOIL Synthetic Chaincase & Gear Oil
Delivers extreme-pressure protection and low-temperature fluidity that extends the life of chaincases and gearcases.
- Extends chain and gear life.
- Inhibits wear and corrosion.
- Ensures subzero protection.
- Optimized for Arctic Cat Diamond Drive* gearcases.
AMSOIL Shock Therapy® Suspension Fluid
Improves damping and reduces friction and wear so suspension engages more smoothly and predictably throughout its entire service interval.
- Delivers smooth, fade-free operation.
- Maximizes damping performance.
- Extends shock life.
- Podium proven.
Remains solid and clings tenaciously to metal surfaces when wet, inhibiting wear and corrosion caused by exposure to water, mud, snow and ice.
- Resists water washout.
- Maximizes all-season performance.
- Inhibits wear and corrosion.
- Extends equipment life.
Restores peak performance and delivers smooth idling and throttle response by cleaning fuel systems and stabilizing fuel during short-term storage.
- Prevents ethanol fuel breakdown.
- Stabilizes fuel for short-term storage.
- Improves ignition, idling and throttle response.
- Cleans and lubricates fuel system.
Comments
AMSOIL Technical Writer and 20-year veteran of the motorcycle industry. Enjoys tearing things apart to figure out how they work. If it can’t be repaired, it’s not worth owning.
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