See how AMSOIL products perform in the lab and in the field.

Consumers have the freedom to choose other than OEM branded lubricants without fear of voiding the original limited or implied warranty. Amsoil synthetic lubricants and performance products are tough, reliable, long lasting, and save you time and money with the peace of mind that your vehicles/ equipment will last longer. About Warranty Secure

Dirt Bike

AMSOIL Synthetic Dirt Bike Oil goes beyond protecting dirt bike engines and transmissions… it improves rider’s performance. Formulated to avoid clutch slip, fade and chatter, it delivers a consistent clutch feel… unique to competition riders and enthusiast alike. AMSOIL synthetic base oil technology naturally resist viscosity loss (caused by extreme heat) providing a constant protective film to protect gears, bearings and pistons to help riders push their bikes to the limit!

Our customers have asked: “I have always used AMSOIL Synthetic Motorcycle Oil in my dirt bike with good results. Is there any reason to switch to Synthetic Dirt Bike Oil?”

Amsoil Technical: “Although AMSOIL Synthetic Motorcycle Oil is perfectly suitable for dirt bikes, AMSOIL Synthetic Dirt Bike Oil is formulated specifically to meet the unique demands of four-stroke dirt bikes. For example, the clutch feel and protection are dialed in for dirt bike riders, while AMSOIL Synthetic Motorcycle Oil is formulated more to the needs of on-road motorcycles.”

The AMSOIL difference is a lubricant formulated specifically for wet clutches. Lubricating a clutch with oil seems like an invitation for slippage and inconsistent shifting. However, a properly formulated oil can reduce clutch slippage. AMSOIL Synthetic V-Twin Motorcycle Oil, Synthetic Metric Motorcycle Oil, Synthetic Dirt Bike Oil and Synthetic Dirt Bike Transmission Fluid contain no friction modifiers or extreme-pressure additives. Instead, each product is dialed-in with the correct frictional properties to promote smooth shifts and consistent clutch feel while guarding against wear for longer clutch life.

AMSOIL Powersports Expert, Len Groom talks about Clutch feel for dirt bike riders and what AMSOIL did to give you the best dirt bike engine oil and transmission fluid.

Synthetic Dirt Bike Oil

10W-40 – 4 Stroke

Honda, Yamaha, Suzuki, and Kawasaki engines and transmissions

10W-50 – 4 Stroke

KTM, Husqvarna or any dirt bike calling for a 10W-50

10W-60 – 4 Stroke

KTM and Husqvarna or any dirt bike calling for a 10W-60

Dominator Racing Oil – 2 Stroke

Provides outstanding film strength. Delivers maximum power. Burns clean.

Fuel Additives and Carburetor Cleaner

Increases octane up to 3 numbers. Improves startup performance. Designed to increase power
Cleans fuel systems. Addresses ethanol-related performance issues. Stabilizes fuel.
Helps keep fuel from deteriorating. Protects against varnish and gum buildup. Helps keep engines running at peak performance.
Cleans combustion intake systems. Maximizes horsepower. Restores start-ability.

Synthetic Suspension Fluid

For quick rebounds under extreme temperatures. Maximum stability and performance. Reduces wear and scuffing.
For more dampening and slower rebounds. Maximum stability and performance. Reduces wear and scuffing.

Dirt Bike Transmission Fluid

Confident clutch feel. Protects gears.

Oil Filters

Extends motorcycle filter life. Improves performance. Guard against engine wear
Extends motorcycle filter life. Improves performance. Guard against engine wear

Spray Lubricants

Lubricates and protects nonmetal surfaces. Locks-out moisture. Will not attract dust or dirt
Disperses water. Protects metal surfaces. Penetrates existing rust build-up
Contains additives that specifically protect against corrosion. Displaces water and seals equipment from water intrusion. Leaves a dry, long-lasting (up to several years), wax-like amber film
Outstanding protection against wear and corrosion. Helps extend chain life. Does not attract dirt


Requires no water. Holds dirt in suspension while bike is wiped clean. Protects against UV rays
Loosens grease & grime. Fast-acting. Leaves a clean scent
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