AMSOIL 100% Synthetic Motorcycle Oil for Sport, Adventure, Touring & Racing Motorcycles
From daily touring to aggressive sport and adventure riding, AMSOIL 100% Synthetic Motorcycle Oil delivers reliable protection, consistent shifting and high-temperature performance.
AMSOIL 100% Synthetic Motorcycle Oils are formulated for four-stroke street, adventure, touring, and racing motorcycles. Applicable products meet performance standards including API SP and JASO MA2 for wet-clutch compatibility. Always confirm the specifications required for your motorcycle and selected viscosity.
For touring and adventure motorcycles that spend hours under sustained load, resistance to heat, oxidation, and viscosity loss helps maintain protection over long rides. In qualifying applications, AMSOIL motorcycle oils allow extended drain intervals of up to twice the manufacturer’s recommended interval.
Built for Four-Stroke Street, Adventure, Touring & Racing Motorcycles
AMSOIL 100% Synthetic Motorcycle Oils are formulated for four-stroke street, adventure, touring, and racing motorcycles and meet applicable performance standards, including API SP and JASO MA2 on products carrying those specifications. Always confirm the specifications listed for your viscosity and application.
Touring and adventure motorcycles can spend hours operating under sustained load, making resistance to heat, oxidation, and viscosity loss especially important. In qualifying applications, AMSOIL motorcycle oils allow extended drain intervals of up to twice the manufacturer’s recommended interval.
Which AMSOIL Motorcycle Oil Is Right for Your Bike?
Start with the viscosity and performance specifications in your owner’s manual. When more than one viscosity is approved, consider your climate, riding conditions, and motorcycle application to help choose between the recommended options.
| AMSOIL Motorcycle Oil Viscosity Guide | |||
| Viscosity | Bike Type | Application Considerations | Riding Style |
| 5W-40 |
Sport, adventure, and touring bikes that call for a lower cold-start grade
|
Lower cold-temperature viscosity
|
Everyday street use and all-weather riding
|
| 10W-30 |
Motorcycles that specify a lighter viscosity for street use
|
Lighter viscosity where manufacturer-specified
|
Commuting and steady daily riding
|
| 10W-40 |
All-around street, touring, and adventure motorcycles
|
Versatile viscosity for a range of approved applications
|
Mixed riding, highway miles, and weekend trips
|
| 10W-50 |
High-performance sport and racing motorcycles
|
Higher operating-temperature viscosity than 10W-40
|
Aggressive riding, high RPM, and repeated hard acceleration
|
| 15W-50 |
Touring bikes, heavier-load applications, and higher-heat use
|
Higher operating-temperature viscosity where approved
|
Long-distance touring and sustained high-load operation
|
Ride a Harley-Davidson or another V-Twin? Lubrication requirements can differ from sport, adventure, and touring motorcycles, particularly when the engine, transmission, and primary use separate fluids. Explore AMSOIL V-Twin Motorcycle Oil to find the appropriate viscosity and products for your application.
Need help comparing grades and applications? Request a free AMSOIL catalog to explore the full range of products.
Performance Protection for Demanding Motorcycle Applications
Excess friction and heat rob high-performance sport, adventure, touring, and racing motorcycle engines of horsepower and longevity. Engine reliability is just as critical in touring bikes accumulating thousands of miles on the open road.
- supports wet-clutch compatibility for smooth shifting and positive clutch engagement
- maintains shear stability under wet-clutch transmission pressure to protect viscosity
- controls foam during high-rpm operation for stable film strength
- delivers rust and corrosion protection alongside wear control in hot, humid, and stored-bike conditions
AMSOIL 100% Synthetic Motorcycle Oils
Excess friction and heat rob high-performance sport, cruiser and adventure-bike engines of horsepower and longevity. Engine reliability is just as critical in touring bikes accumulating thousands of miles on the open road. AMSOIL 100% Synthetic Motorcycle Oil is durable and long-lasting. Its superior wet-clutch properties ensure smooth, confident shifts while its robust formulation resists the harmful effects of extreme heat. It controls foam during high-rpm operation and guards against wear for superior engine reliability.
- Maximum power & performance
- Superior engine protection
- Smooth and precise shifting
- Inhibits rust and corrosion
- Cools hot engines
Related Powersports Maintenance Products
AMSOIL Motorcycle Filters
AMSOIL Motorcycle Oil Filters are made from full-synthetic media and trap and hold more contaminants than other filters. They last longer, stop smaller dirt particles and offer reduced restriction for maximum engine performance and protection. Available in black or chrome.
AMSOIL Severe Gear® 100% Synthetic Gear Lubes
- Advanced protection against wear
- Controls thermal runaway
- Protects against rust and corrosion
- Helps reduce operating temperatures
- Long oil, seal & equipment life
- Contains friction modifiers for limited-slip applications
AMSOIL Shock Therapy® Suspension Fluids
Formulated for Fade-Free Dampening and Smooth Rebounds in High-Performance Applications
A properly functioning suspension is vital to performance during a race or maneuvering around obstacles on the trail. For greatest effectiveness, riders need a consistent suspension feel over a broad temperature range. Aggressive riding, however, can heat suspension fluid enough to cause viscosity loss, resulting in a soft, inconsistent feel. AMSOIL Shock Therapy Suspension Fluid resists viscosity loss over a broad temperature range for consistent, effective suspension feel. It reduces foaming and is engineered for riders who demand consistent, top-tier suspension performance.
To cross-reference against your current product, visit AMSOIL.com/shockfluidcrossreference.
- Controls friction and heat
- High viscosity index
- Limits shock fade amd inconsistent dampening
- Light #5, Quick rebounds under extreme temperatures
- Medium #10, More dampening & slower rebounds
- Seal conditioners for extended service life
- Race-grade technology
AMSOIL Motorcycle Fuel Additives, Chain Lube, and Brake Fluid
AMSOIL General Purpose Cleaners and Protectants
From removing grease, grime, and stubborn contaminants to lubricating moving parts and defending metal surfaces against rust and corrosion, these specialized formulas make routine cleaning, maintenance, and long-term protection easier.
Building a complete motorcycle maintenance setup? Request a free AMSOIL catalog to explore the full range of products.
Motorcycle Oil FAQ
AMSOIL motorcycle oil is formulated for many four-stroke street, sport, adventure, touring, and racing motorcycles that require the listed viscosity and specifications. Always follow your owner’s manual for the correct viscosity and service requirements.
Yes. AMSOIL motorcycle oils carrying the appropriate JASO wet-clutch specification are formulated for wet-clutch compatibility and support smooth shifting and positive clutch engagement. Always confirm that the product meets the specifications required by your motorcycle.
In qualifying applications, AMSOIL extended drain intervals can reach up to twice the manufacturer’s recommendation. Check your owner’s manual and the applicable product data sheet for service limits and conditions.
Yes. Applicable AMSOIL 100% Synthetic Motorcycle Oils meet API SP and JASO MA2 performance standards. Check the individual product specifications to confirm the requirements for your motorcycle and selected viscosity.
Choose a viscosity approved in your motorcycle owner’s manual. When multiple grades are permitted, your climate and riding conditions can help narrow the choice. Hotter operation, heavier loads, and more aggressive riding may favor a higher-viscosity option, while cooler conditions may favor a lower cold-temperature grade. Always stay within the manufacturer’s approved viscosity range.