Best Motorcycle Motor Oils in 2026

Designed for the latest Big-Twin motorcycle engines that specify 20W50 motor oil, including Milwaukee-Eight, Evolution, Twin Cam and aftermarket engines of similar design

Superior film strength through the use of ester base stocks for protection and ring seal

Extended drain intervals over other brands due to higher quality base stocks and excellent dispersants

For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual

Minimizes metal-on-metal wear

Quiets engines

PACK OF 4 QUARTS

Official Kawasaki Product.

Part Number: K61021-207A

Complete kit for motorcycles equipped with Evolution, Milwaukee-Eight and Twin-Cam engines*

2007-up H-D motorcycle with the 96-inch and larger Twin Cam engines, users must purchase one extra bottle of Primary Chain Case Oil to meet this engine’s 38 oz (45 oz dry) capacity, compared to the 32 oz wet capacity of a Milwaukee-Eight, Evolution or V-Twin case

Includes 5 quarts of 20W50 Motorcycle Oil, 1 quart of V-Twin Transmission Oil with ShockProof, 1 quart of Primary Chain Case Oil, 1 bottle of Fuel Injection Cleaner for Powersports, a sticker kit, a Red Line Oil embroidered hat and a versatile funnel

Full Synthetic Formula Helps Maximize Power And Acceleration

Formulated To Provide Outstanding Wet Clutch Protection For Maximum Power Transfer And Smooth Shifting

Added Protection Against Harmful Deposits That Can Decrease Engine Performance

Formulated with Trizone technology to protect all 3 critical zones: engine, clutch and gearbox

Race derived technology for maximum engine acceleration

Extreme high temperature air-cooled performance

Formulated with Trizone technology to protect all 3 critical zones: engine, clutch and gearbox

Race derived technology for maximum engine acceleration

Extreme high temperature air-cooled performance and water-cooled engine performance

1 gallon, 10W40

Genuine OEM Honda oil

HONDA set the standard for motorcycle oil when it introduced GN4 way back in 1975

PRIMARY CASE OIL - For 1984-to-present V-Twin American motorcycle engines, including Evolution, Twin Cam, and aftermarket engines of similar design

BOOSTS VEHICLE PERFORMANCE - Improves clutch operation while reducing wear and temperature, providing a longer clutch lifespan

PERFORM & PROTECT - This product is for use in the primary chaincase with wet-diaphragm spring clutches. Perfect for Motorcycles, ATVs, and Powersports

Race-derived technology for maximum engine acceleration

Extreme high temperature air-cooled performance and water-cooled engine performance

Excellent shear stability to prevent viscosity breakdown

HONDA 08C35-A141M01 OIL, ENG (GN4 10W40)

Honda set the standard for motorcycle oil when it introduced GN4 way back in 1975.

We selected the highest-quality base stocks and created an additive package specifically designed for the unique requirements of motorcycle and ATV engines.

Klotz KL-300 - Motorcycle Techniplate TC-2 Oil 1 Qt

Klotz (KL-300 Motorcycle Techniplate Engine Lubricant

Klotz

Part synthetic 4-stroke motorcycle oil protects your bikes engine against high temperature deposit and wear

Formulated with Heat Protection Molecules to combat and minimize the formation of harmful high temperature combustion deposits

Outstanding high temperature oil consumption and oxidation control

Formulated with Trizone technology to protect all 3 critical zones: engine, clutch and gearbox

Provides maximum protection against viscosity and thermal breakdown

Delivers superior engine wear protection and high film strength for high revving motorcycle engines

Part synthetic 4-stroke motorcycle oil protects your bikes engine against high temperature deposit and wear

Formulated with Heat Protection Molecules to combat and minimize the formation of harmful high temperature combustion deposits

Outstanding high temperature oil consumption and oxidation control

NO COMPROMISE FORMULATION - Ours is a state-of-the-art formulation that is built for performance. Synthetic ester base oils, built-in friction modifiers, and outstanding viscosity stability under high thermal stress and high RPM.

HIGHLY OXIDATION STABLE - Protects the engine from oil thickening, high-temperature sludge, and varnish deposits. SHEAR STABLE HIGH VI INDEX - Improver-protects against viscosity breakdown in severe service and racing conditions.

VERY HIGH WEAR PROTECTION - Anti-wear agents and built-in friction modifiers effectively protect cam lobes and other highly loaded parts from wear, including chains and clutches. Excellent performance and high wear protection in high temp engines such as the V-TWIN.

Klotz KL-302 - Motorcycle Techniplate TC-W3 Oil 1 Qt

Multi-grade engine oil for 4-stroke motorcycle engines

Meets or exceeds API SM and JASO MA2 specifications

Also works with air-cooled/liquid-cooled 4-stroke engines and wet clutches

Keeps motorcycle crankcases clean

Prolongs engine and transmission life

Provides smooth and quiet shifting

Motul Break In Oil (Pack of 6)

10W40

107319

High Performance Motorcycle Lubricant for Use in: Sports Bikes/Street Bikes/Road Bikes/Trails/Off Road Bikes/Enduro/Trial fitted with 4 Stroke engines/integrated gearbox or not/wet or dry clutch/engines meeting Euro 2 or Euro 3 emission regulation/exhaust gas after treatment systems: catalytic converters/air injection into exhaust pipe. // Other Uses: Street Bikes without Catalytic Converters/Scooters/ATVs/UTVs.

100% Synthetic with Ester Technology provides low traction coefficient Ester to minimize engine internal friction losses and improve performance. // Synergy of Ester with anti-wear additives and improved shear resistance for improved gear protection and life time.

100% Synthetic lubricant for improved oil film resistance at high temperatures and high revs. // Optimized Phosphorus and Sulphur content (JASO MA2 < 1200 ppm) for better operating conditions of catalytic converters.

PERFORMANCE – Protects all motorcycle fork applications

PROTECTION – Provides protection to seals by preventing stiction and drag

PEACE OF MIND – Meets or exceeds manufacturer’s warranty requirements

Can be used in all 4-stroke motorcycle engines with or without wet clutches.

Reduced cylinder and ring wear.

The shear stability provides superior lubrication and film strength. Minimizes friction for maximum power.

Popular in turbocharged applications

For wider bearing clearances and racing engines that see occasional street use

25% more viscosity than petroleum 20W-50s

4-Stroke

Excellent high temperature protection

Resists thermal and oxidative breakdown

ENGINEERED FOR EXACT FITMENT - We’ve developed and tested the oil, filter and other parts to meet the specs required by your engine. That’s why this kit contains 3 quarts of oil while others may have 4 quarts.

EVERYTHING YOU NEED FOR YOUR OIL CHANGE - Each kit contains everything you need to change your oil: 3 quarts of SAE 10W-40 engine oil, 1 oil filter, 1 crush washer, 1 funnel, 1 oil change sticker

FULLY CERTIFIED AND MEETS OEM SPECIFICATIONS - Factory Racing Parts was born from expertise and credibility. We put in the work to make sure you are getting the right viscosity and certifications to meet warranty for your engine.

Ultimate synthetic engine lubricant

Bel-Ray EXS Synthetic Ester 4T Engine Oil is a 4-stroke motorcycle oil providing outstanding wear protection, low temperature and high temperature performance. This oil is designed for the high stress race environment but perfect for touring and sport bikes as well.

For use in all 4-stroke engines requiring an oil meeting the API SG/SH/SJ/SL/SM standards.

For use in all 4-stroke motorcycles with or without wet clutches including those specifying the use of a JASO MA/MA1/MA2 qualified oil.

Delivers more power & response

Reduces engine noise & vibration

Protects & prolongs engine life

Goldfire 4T synthetic blend oils contain detergent/dispersants, anti-corrosion inhibitors and anti-wear additive for improved wet-clutch and transmission performance

PJ1 Goldfire 4T Oils are designed to properly lubricate engine, transmission, and clutch parts, with special additives to help reduce piston scuffing and reduce cam wear

Recommended for all 4-stroke air or water-cooled motorcycle and small engines