Motul 300V 10W40 SYNESTR Motorcycle Engine Oil 4L – Double-Ester Synthetic, High-RPM Protection

Motul 300V 10W40 SYNESTR is a high-performance 4-stroke motorcycle oil formulated with double-ester technology to deliver exceptional lubricity, rapid throttle response and sustained high-RPM protection.

Designed for competitive and spirited street riding, Motul 300V SYNESTR 10W40 blends two complementary esters to improve film strength and reduce friction under extreme conditions. This synthetic formulation targets race-level demands for acceleration, clutch feel and engine revving while remaining compatible with modern emission systems and wet-clutch designs.

How does the double-ester formula improve engine performance?

The pairing of two esters creates a robust lubricating film that resists breakdown at high temperatures and shear, preserving engine efficiency and allowing quicker throttle response. Riders notice crisper acceleration and maintained power at high RPMs without increased drag.

• Enhanced lubricity for reduced internal friction
• Stable film at racing temperatures for better wear protection
• Zero percent shear loss in Bosch ASTM D6278 benchmark
• Improved engine response and sustained maximum RPM

Is this oil suitable for my motorcycle and clutch system?

Motul 300V 10W40 SYNESTR is formulated for high-performance 4-stroke motorcycles, including road racing and motocross machines. It passes JASO T904 for wet-clutch compatibility, so it works with bikes that require friction characteristics suited to integrated wet clutches.

• Recommended for high-performance 4-stroke engines
• Compatible with motorcycles that have catalytic converters
• Passes JASO T904 wet-clutch standard for clutch feel
• Appropriate for both track and aggressive street use

What protection and standards can I expect from this oil?

This synthetic oil goes beyond conventional benchmarks to provide superior protection during intense operation. It was engineered to meet or exceed existing industry standards for wear control, thermal stability and shear resistance, making it a contender for demanding riding conditions.

• High thermal and oxidative stability for long-lasting protection
• Exceptional shear resistance keeps viscosity consistent under load
• Formulated to support high-RPM, high-load environments
• Manufactured by Motul with motorsport-grade quality control

How should I use and store Motul 300V 10W40 SYNESTR?

Use the oil as specified by your motorcycle manufacturer for 10W40 viscosity or when a full-synthetic, high-performance oil is desired. Replace oil and filter at regular service intervals, and store unopened containers in a cool, dry place away from direct sunlight and extreme temperatures.

• Change oil and filter according to bike maker’s schedule
• Use appropriate capacity — this listing is for a 4 L container
• Store sealed canisters upright, protected from heat and sunlight
• Follow local disposal rules for used oil and packaging

Who is this for? Motul 300V 10W40 SYNESTR is aimed at riders who demand track-capable performance from their engine oil: racers, aggressive sport-bike owners, and enthusiasts who want improved throttle response, robust high-RPM protection and reliable wet-clutch compatibility. It suits motorcycles used in road racing, motocross or high-performance street riding where maintaining power and minimizing wear matter most.

Warning: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. Handle and dispose of used oil and containers following local regulations.