
Dirt Bike Products
AMSOIL Synthetic Oils and Filters Dirt Bikes

AMSOIL SYNTHETIC Dirt Bike OIL
AMSOIL Dirt Bike Oil is specially formulated to enhance the performance of hard-charging and performance Dirt Bikes. Its exceptional severe-service formulation enables riders to confidently and safely push their machines to their limits, whether tackling difficult chores around the property or riding aggressively on the trail.
The majority of dirt bikes consume the same amount of oil as a push lawnmower despite producing ten times the power, and the best dirt bike engine oil to get maximum energy is the AMSOIL Dirt Bike Oil.
Modern dirt bikes, like other vehicles, get more power from smaller engines. Often, only about a quart of oil is sufficient to protect against wear and the devastation caused by extreme heat. Obviously, you want to use the best dirt bike oil possible to maximize engine protection and life.
Don’t wait around; place your order for the best dirt bike engine oil today!
What is the Best AMSOIL Dirt Bike Oil?
What dirt bike oil is required to do
Main tip to keeping your Dirt Bike running the best is to do an Oil check/change
Whether you’re riding local trails or competing in sanctioned motocross races, you want to ride efficiently. Perhaps that means getting ahead of your teammates on the trail or grabbing the holeshot and riding to the checkered flag.
As a result, with some dirt bike engines revving up to 10,000 revolutions per minute.
Add some summer heat to the mix, and your engine is in for a workout. When hot ambient temperatures combine with a high-revving engine, severe conditions can occur, reducing engine performance and life.
Heat puts a strain on your Dirt Bike engine.
Metal engine components expand as a result of heat. If, for example, the piston expands beyond normal tolerances, it can scuff and wear the lubricant film that separates it from the cylinder wall. Eventually, the piston will fail, resulting in the engine’s destruction.
Minimum oil consumption, maximum stress on your dirt bike engine
Motor oil is your first line of defense against scuffing and wear on the pistons. Through the oil sump, the oil absorbs heat and dissipates it into the atmosphere.
Additionally, it should form a dense, resilient film on engine components, preventing metal-to-metal contact. Its detergents and dispersants must maintain the suspension of combustion byproducts and prevent them from forming harmful engine deposits that can result in piston ring sticking and power loss. However, the majority of dirt bikes only hold about a quart of oil.
Make/Model | Horsepower | Quarts of Oil |
KTM 450 EXC-F | 52 | 1.27 |
Honda CRF450R | 53 | 1.1 |
Kawasaki KX 450 | 52 | 1.0 |
A small amount of oil is required to resist extreme heat and wear in your expensive, powerful dirt bike engine. The oil had better be up to the task, or the engine will eventually wear out and fail.
AMSOIL Synthetic Dirt Bike Oil is not a rebranding of a conventional automotive oil. By collaborating with professional Supercross and Motocross riders, AMSOIL identified the pain points on modern dirt bikes. On the track and in their mechanical lab, we validated the oil.
As a result, an advanced oil has been developed that provides superior protection against wear and extreme heat in high-revving, powerful motorcycles. Additionally, we designed it to have a secure clutch feel. Riders require an oil that not only protects against wear, but also provides consistent clutch feel from the moment the gate drops until they cross the finish line.
Heat and stress-induced oil breakdown results in clutch slippage and a sloppy, inconsistent clutch feel, reducing rider performance. AMSOIL Synthetic Dirt Bike Oil also performs well in this area, as demonstrated by test results.
AMSOIL provided superior wear protection and kept clutch plates looking new during extreme simulated-start testing. ¹
You can see why it’s critical to use a dirt bike-specific oil. Given its superior wear and heat resistance, as well as its ability to provide a confident clutch feel, we believe AMSOIL Synthetic Dirt Bike Oil is the best on the market and the oil you should be using.
Maintain your Bike with the best AMSOIL Dirt Bike products. Here are a few AMSOIL products that that you can use in your dirt bike
AMSOIL 10W-40 Synthetic Dirt Bike Oil is engineered to deliver the performance attributes most requested by on- and off-track dirt bike riders, including consistent clutch feel. Consistent clutch feel is the result of “friction durability,” so whether deep into a race or deep in the woods, riders can feel confident their clutch will perform from start to finish. AMSOIL-exclusive advanced chemistry provides outstanding engine reliability for worry-free operation under severe conditions.
As a result, an advanced oil has been developed that provides superior protection against wear and extreme heat in high-revving, powerful motorcycles. Additionally, we designed it to have a secure clutch feel. Riders require an oil that not only protects against wear, but also provides consistent clutch feel from the moment the gate drops until they cross the finish line.
Heat and stress-induced oil breakdown results in clutch slippage and a sloppy, inconsistent clutch feel, reducing rider performance. AMSOIL Synthetic Dirt Bike Oil also performs well in this area, as demonstrated by test results.
AMSOIL 10W-50 Synthetic Dirt Bike Oil Engineered to deliver the performance attributes most requested by on- and off-track dirt bike riders, including consistent clutch feel. Consistent clutch feel is the result of “friction durability,” so whether deep into a race or deep in the woods, riders can feel confident their clutch will perform from start to finish. AMSOIL-exclusive advanced chemistry provides outstanding engine reliability for worry-free operation under severe conditions.
AMSOIL 10W-60 Synthetic Dirt Bike Oil is Engineered to deliver the performance attributes most requested by on- and off-track dirt bike riders, including consistent clutch feel. Consistent clutch feel is the result of “friction durability,” so whether deep into a race or deep in the woods, riders can feel confident their clutch will perform from start to finish. AMSOIL-exclusive advanced chemistry provides outstanding engine reliability for worry-free operation under severe conditions.

Powersports Oil Filters

2 Stroke Powersports
Product Code: TDRQT-EA
Racers can’t win what they don’t finish. That’s why AMSOIL formulators built DOMINATOR® 2-Stroke Racing Oil. This complex blend of oils and additives directly addresses the heat, pressure and friction of race-engineered engines. These engines operate on the edge, yet engine reliability is critical. DOMINATOR does an outstanding job protecting high-performance engines. It adds durability that professional racing teams depend on and delivers confidence so engines can be pushed to the limit.

4 Stroke Powersports
Product Code: DB40QT-EA
Engineered to deliver the performance attributes most requested by on- and off-track dirt bike riders, including consistent clutch feel. Consistent clutch feel is the result of “friction durability,” so whether deep into a race or deep in the woods, riders can feel confident their clutch will perform from start to finish. AMSOIL-exclusive advanced chemistry provides outstanding engine reliability for worry-free operation under severe conditions.
Product Code: DB50QT-EA
Engineered to deliver the performance attributes most requested by on- and off-track dirt bike riders, including consistent clutch feel. Consistent clutch feel is the result of “friction durability,” so whether deep into a race or deep in the woods, riders can feel confident their clutch will perform from start to finish. AMSOIL-exclusive advanced chemistry provides outstanding engine reliability for worry-free operation under severe conditions.
Product Code: DB60QT-EA
Engineered to deliver the performance attributes most requested by on- and off-track dirt bike riders, including consistent clutch feel. Consistent clutch feel is the result of “friction durability,” so whether deep into a race or deep in the woods, riders can feel confident their clutch will perform from start to finish. AMSOIL-exclusive advanced chemistry provides outstanding engine reliability for worry-free operation under severe conditions.

Gasoline Additives
Product Code: MOBCN-EA
Increases octane for power and efficiency. It is designed to improve startup performance and eliminate engine ping and knock for increased power at low-rpm operation. Contains detergents that help combustion chambers and fuel delivery systems maintain cleanliness for optimum performance.
Product Code: ASTCN-EA
Helps keep fuel fresh for up to 12 months. Fights oxidation to prevent the formation of varnish and sludge and keep floats and injectors clean for optimal engine performance. Ideal for stored seasonal equipment such as snowmobiles, lawnmowers, motorcycles and boats. Eases starting process when equipment is taken out of storage.

General Purpose Cleaners & Protectants
Product Code: AMHSC-EA
Made with special rust and corrosion inhibitors. Excellent on metal surfaces, leaves a long-lasting protective coating. Protects against the effects of salt, moisture & chemical corrosion. Works as an undercoat, leaving a wax-like amber film. **NOT AVAILABLE IN CANADA
Product Code: AMP
Displaces water and protects metal surfaces from rust and corrosion. Provides a light film that prevents metal-to-metal contact. Excellent for use on hinges, squeaky mechanical objects, electrical systems and more. Penetrates existing rust buildup. Also dries wet electrical systems.
Product Code: BPCSC-EA
AMSOIL Brake & Parts Cleaner (BPC) quickly removes oil, grease, brake fluid and other contaminants from brake parts and other automotive components. It cleans brake parts with no major disassembly and leaves no residue, helping eliminate brake squeal and chatter. **NOT AVAILABLE IN CANADA, CALIFORNIA AND NEW JERSEY
Product Code: AEDSC-EA
Engine Degreaser (AED) is a professional-strength formula packed with powerful degreasing solvents that quickly and easily remove the toughest grease, dirt and grime from engine surfaces. Just spray it on and wash off with water. **NOT AVAILABLE IN CANADA
Product Code: ALSSP-EA
AMSOIL Silicone Spray protects with a dry lubricating film ideal for surfaces that may be damaged by conventional lubricants such as grease or oil. AMSOIL Silicone Spray also helps prevent the cracking and drying of rubber and locks out moisture. It will not attract dust or dirt, keeping applications contaminant-free. **NOT AVAILABLE IN CANADA
Product Code: AMWSC-EA
Miracle Wash® Waterless Wash & Wax (AMW) is a unique dry car wash and wax that delivers outstanding performance and quick, easy and economical application. No water is required; specially formulated surfactants lift dirt and other particles from the surface and hold them in suspension. Miracle Wash then acts as a shield, protecting the surface from abrasion while you wipe the dirt clean. **NOT AVAILABLE IN CANADA
Product Code: FOGSC-EA
A highly-effective rust preventative designed to protect internal engine components during storage or long periods of inactivity. Ideal for outboard motors, lawn and garden equipment, motorcycles, snowmobiles, ATVs, motor homes and generators or any equipment with a two- or four-stroke engine. **NOT AVAILABLE IN CANADA
Product Code: APFSC-EA
AMSOIL Power Foam® (APF) improves engine performance by removing gum, varnish and carbon deposits that affect power, operation, idle and fuel economy. Power Foam cleans intake valves, intake manifolds and throttle plates to keep the combustion intake system running at peak efficiency. Effective in both two- and four-stroke gasoline engines, Power Foam helps reduce engine ping and keeps carburetors and injector systems operating like new. **NOT AVAILABLE IN CANADA OR CALIFORNIA

Suspension Fluid
Product Code: STLQT-EA
Controls friction, heat, wear, foaming and scuffing in suspension components. High viscosity index and shear-stability controls shock fade and inconsistent dampening in temperature extremes.
Product Code: STMQT-EA
Controls friction, heat, wear, foaming and scuffing in suspension components. High viscosity index and shear-stability controls shock fade and inconsistent dampening in temperature extremes.