10 Best Synthetic Motorcycle Oil of December 2025

• 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
• Excellent wear and corrosion protection to help keep the engine performing its best

Valvoline

• Package Dimensions: 8.75 L x 9.13 H x 7.75 W (inches)
• Package Weight : 12.5 pounds
• Country of Origin : United States
• Part number: 10702

Lucas Oil

• Package Dimensions: 8.75 L x 9.13 H x 7.75 W (inches)
• Package Weight : 12.5 pounds
• Country of Origin : United States
• Part number: 10054

Lucas Oil

• 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
• Excellent shear stability to prevent viscosity breakdown
• Exceeds API SL and JASO MA-2

Castrol

• 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
• Excellent wear and corrosion protection to help keep the engine performing its best

Valvoline

• 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
• Excellent shear stability to prevent viscosity breakdown
• Exceeds API SL and JASO MA-2

Castrol

• Meets the following standards: API SL/SH/SG and JASO MA
• Recommended for all 4-stroke motorcycles with catalytic converters
• Ester technology improves engine response
• Proprietary extreme pressure formula to protect the gearbox
• Low sulfur and phosphorus formula for bikes fitted with catalytic converters

Motul

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

Mobil 1

• PRO PLUS+ is designed to prolong engine and wet clutch life and offers excellent feel, smoother transmission shifting, easy starts, and improved fuel economy
• PRO PLUS+ is an ester fortified 100 percent full synthetic 4T engine oil
• PRO PLUS+ is formulated to exceed JASO MA requirements for 4-cycle engines with integrated wet clutches
• Balanced Anti-wear and Anti-scuff additive system minimizes engine deposits while protecting critical engine, transmission and clutch components
• All weather formula meets or exceeds JASO MA, API SL/SJ/SH/SG

Maxima

• 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
• Excellent wear and corrosion protection to help keep the engine performing its best

Valvoline