V-Twin and Cruiser
Lubricants for air-cooled and liquid-cooled V-twin motorcycles, including engine oil, primary fluid, transmission fluid, filters and complete oil-change kits.
Harley-Davidson
Red Seal 310T Technician
·
AMSOIL Dealer Since 2006
Motorcycle Lubricants and Maintenance
Motorcycle Oil, Fluids and Maintenance
Find the correct motorcycle engine oil, transmission fluid, primary fluid, oil filter and maintenance products for street bikes, cruisers, touring motorcycles, dirt bikes and other powersports equipment.
Quick Answer
Use the viscosity, specification and service interval listed for the exact motorcycle. Do not choose motorcycle oil by brand loyalty, bottle colour or a guess based only on engine size.
Built Around the Motorcycle
Motorcycle Lubrication Is Not One-Size-Fits-All
Motorcycle engines place different demands on oil than most passenger-car engines. High operating temperatures, compact oil capacities, wet clutches, shared sumps and gear loading can all affect which lubricant belongs in the machine.
Some motorcycles use one lubricant for the engine, clutch and transmission. Others use separate engine, primary and transmission compartments. The correct answer depends on the motorcycle—not on a universal rule.
Vyscocity organizes motorcycle lubrication information by manufacturer and application so riders can find the right product without sorting through unrelated automotive oils.
Find the Right Application
Motorcycle Lubricants by Riding Type
Street and Sport Bikes
Motorcycle oils designed for high engine speeds, close internal clearances, integrated transmissions and wet-clutch operation.
Shop Street-Bike OilDirt Bikes and Off-Road
Oils, transmission fluids, filters and maintenance products for motocross, enduro, trail and other off-road motorcycle applications.
Shop Dirt-Bike ProductsTwo-Stroke Motorcycles
Injector oils, premix oils and ratio information for two-stroke dirt bikes, racing motorcycles and other powersports engines.
Two-Stroke InformationMotorcycle Oil Filters
Find the correct spin-on or cartridge oil filter using the exact motorcycle year and model rather than relying on appearance alone.
Find My FilterMaintenance Products
Chain lubricants, fuel additives, cleaners, suspension fluids, brake fluid and other products used during routine motorcycle maintenance.
Shop Motorcycle Products
Browse by Manufacturer
Motorcycle Oil by Brand
Manufacturer sections group oil recommendations, service information and product options under one clear motorcycle category.
Harley-Davidson
Hub available
Honda
Section coming later
Yamaha
Section coming later
Kawasaki
Section coming later
Suzuki
Section coming later
KTM
Section coming later
Indian Motorcycle
Section coming later
BMW Motorrad
Section coming later
Built to grow:
Additional motorcycle manufacturers can be added under the same
structure without changing the main motorcycle URL.
Choosing Motorcycle Oil
What Matters When Selecting Oil
Use the Required Viscosity
Oil viscosity affects cold-start flow, oil pressure, heat resistance and protection under load. Use an approved viscosity for the expected operating temperature and the exact motorcycle.
Check Wet-Clutch Requirements
Many motorcycles use the engine oil to lubricate the transmission and wet clutch. The wrong lubricant can affect clutch engagement or shifting performance.
Confirm the Specification
A viscosity such as 10W-40 or 20W-50 does not describe the complete oil. API, JASO and manufacturer requirements also matter.
Know Which Compartments Are Separate
Harley-Davidson Big Twin motorcycles commonly use separate engine, primary and transmission compartments. Many Japanese motorcycles use one shared lubricant.
Use the Correct Capacity
Motorcycle oil capacities can differ by model, engine, configuration and whether the filter is replaced. Fill according to the correct service procedure and verify the final level.
Do Not Extend Intervals Blindly
Riding conditions, engine modifications, racing, repeated short-trip operation and contamination can require shorter service intervals even when a premium synthetic oil is used.
Featured Motorcycle Section
Harley-Davidson Oil and Fluids
The Harley-Davidson section covers V-twin engine oil, primary chaincase fluid, transmission fluid, oil filters and the four AMSOIL oil-change kit options available for most Twin Cam and Milwaukee-Eight motorcycles.
Motorcycle Oil FAQ
Common Motorcycle Lubrication Questions
Can I use passenger-car motor oil in a motorcycle?
Only when the motorcycle manufacturer permits it and the oil meets every required viscosity and performance specification. Motorcycles with wet clutches or shared engine and transmission lubrication may require motorcycle-specific performance characteristics.
What does JASO MA or JASO MA2 mean?
JASO MA and JASO MA2 are motorcycle-oil classifications associated with friction performance for motorcycles using wet clutches. Use the classification required by the motorcycle manufacturer.
Do all motorcycles use the same oil in the engine and transmission?
No. Some motorcycles use a shared sump for the engine, transmission and clutch. Others have separate compartments that may require different lubricants.
How do I find the correct oil capacity?
Check the owner’s manual or a model-specific lubricant lookup. Confirm whether the stated capacity includes an oil-filter change, and verify the oil level using the manufacturer’s procedure.
Does synthetic motorcycle oil allow longer oil-change intervals?
Some synthetic oils carry extended-service recommendations, but the applicable interval depends on the product, motorcycle, riding conditions and manufacturer requirements. Racing, modified engines and severe operation can require more frequent changes.
Find the Correct Oil for Your Motorcycle
Search by year, manufacturer and model to confirm the recommended engine oil, capacity, filter and other motorcycle fluids.