Synthetic Motorcycle Oil
Synthetic Motorcycle Oil Engineered for What You Ride
Shopping for motorcycle oil shouldn’t be complicated, but different bikes have different lubrication demands. Motorcycle oil may need to protect the engine, transmission, and wet clutch while handling heat and shear, which is why motorcycle-specific formulations matter. Choosing the right oil starts with checking your owner’s manual for the recommended viscosity and performance specifications, whether that calls for 10W-30, 10W-40, 15W-50, 20W-50, or another grade.
If you own more than one motorcycle, don’t assume the same oil is right for every bike. V-Twins, sport bikes, and dirt bikes can have different viscosity and performance requirements.
What is Synthetic Motorcycle Oil?
Synthetic motorcycle oil uses chemically engineered base oils designed to provide more consistent performance than conventional mineral-based oils. This controlled formulation can improve resistance to heat, oxidation, viscosity loss, and mechanical shear, all of which are important in demanding motorcycle applications.
Request a free AMSOIL catalog to compare motorcycle oil viscosities and product families.
Why Motorcycles Need Motorcycle-Specific Oil
Motorcycles can place unique demands on oil. High engine temperatures accelerate oxidation and deposit formation, while motorcycles that share oil between the engine and transmission expose the lubricant to additional shearing forces. Wet clutches also require the proper friction characteristics for consistent engagement.
Check your owner’s manual for the recommended viscosity and clutch specification. Many street bikes call for AMSOIL SAE 10W-40 100% Synthetic Motorcycle Oil, some applications use AMSOIL 15W-50 100% Synthetic Motorcycle Oil, and many V-twins use AMSOIL SAE 20W-50 Synthetic V-Twin Motorcycle Oil. Always confirm the required API and JASO specifications, including JASO MA or MA2 for wet-clutch applications where applicable.
| AMSOIL Motorcycle Oil Recommendations by Bike Type | |||
| Bike Type | Common Viscosities | Key Standards | Relevant AMSOIL Product Family |
|
V-Twin
|
20W-50, 15W-60
|
JASO MA/MA2, API categories where applicable
|
V-Twin Motorcycle Oil |
|
Dirt Bike
|
10W-40, 10W-50
|
JASO MA/MA2, API categories where applicable
|
Dirt Bikes |
|
Sport, Adventure & Touring
|
10W-40, 15W-50
|
API and JASO MA/MA2 where applicable
|
Sport, Adventure, Touring, and Racing Motorcycle Oil |
Why Choose AMSOIL Synthetic Motorcycle Oil
AMSOIL synthetic motorcycle oils are formulated for motorcycle-specific performance requirements, with applicable products meeting API and JASO performance standards. They are also Warranty Secure™, keeping your factory warranty intact.
- Resist Viscosity Breakdown – Intense heat and mechanical stress can cause lower-quality oils to lose viscosity. AMSOIL synthetic motorcycle oils use thermally stable base oils and additives designed to help maintain protective viscosity.
- Maintain Shift Feel – Transmission shear degrades oil quickly, but AMSOIL’s shear-stable formula helps maintain the film strength needed for smooth, consistent shifting.
- Control Wear And Deposits – A robust additive package helps protect engine components against wear and deposit buildup, which supports longer service life in severe riding conditions.
Choose your motorcycle type below to find the appropriate AMSOIL oil, viscosity options, and application information.
Motorcycle Oil FAQs
Synthetic motorcycle oil is manufactured through controlled processes to deliver more consistent viscosity, cleanliness, and resistance to heat and shear than conventional oil.
For many riders, synthetic motorcycle oil offers stronger oxidation resistance, better shear stability, and more consistent performance in heat. Your owner’s manual and required specifications still determine the right choice.
It can, as long as the oil meets the clutch-related standard your motorcycle requires, such as JASO MA or MA2 where applicable.
Sometimes, but only if the viscosity and specifications match each motorcycle’s requirements. V-twins, sport bikes, and dirt bikes often place different demands on oil.
Start with your owner’s manual to identify the required viscosity and performance specifications. Then consider your bike type and riding conditions to choose the appropriate AMSOIL motorcycle oil.