Motul 5100 4T 10W-40 Motorcycle Oil — 4L Technosynthese Semi-Synthetic with Ester, JASO MA2 Wet-Clutch Safe

Motul 5100 4T 10W-40 is a 4-liter technosynthese (semi-synthetic) motorcycle oil fortified with Ester technology that protects engine and gearbox components while preserving wet-clutch performance.

This lubricant blends synthetic and high-quality mineral base stocks with Ester additives to deliver stable viscosity, strong wear resistance, and JASO MA2 wet-clutch compatibility for a wide range of 4-stroke motorcycles, ATVs, UTVs and scooters. Formulated to meet current API SP and JASO MA/MA2 specs, it balances cost-effectiveness with performance features riders expect: smoother shifts, reduced friction, and protection under varied riding conditions.

How does this oil improve clutch feel and shifting?

Motul 5100 4T is certified JASO MA2, which means its friction profile is tuned to prevent clutch slippage while keeping engagement crisp. Riders will notice more positive, predictable shifting across RPM ranges without sacrificing engine protection.

• JASO MA2-certified friction formula to avoid clutch slippage
• Stable shear resistance for consistent shifting feel over time
• Suitable for wet-clutch street, sport, and touring bikes

What protection does it offer for engine and gearbox components?

The technosynthese base with Ester reinforcement forms a durable lubricating film that resists thermal breakdown and extreme pressure. This blend minimizes wear on gears, bearings, and cam trains while helping maintain oil viscosity across operating temperatures.

• Ester-enhanced film for wear and shear resistance
• Extreme-pressure additives designed for integrated gearboxes
• High flash point and a viscosity index that stabilizes protection

Is Motul 5100 compatible with modern emission systems and different bikes?

Yes — it meets API SP and retains carefully balanced phosphorus and sulfur levels to be compatible with catalytic converters and emission-control hardware used on contemporary bikes. The 10W-40 viscosity suits many manufacturers and mixes safely with other synthetic or mineral oils during service changes.

• API SP-rated for modern emission-compliant engines
• Works across makes: Honda, Yamaha, Kawasaki, Suzuki, KTM, Triumph, BMW, Ducati, Polaris, Can-Am and more
• Miscible with existing oils; no special flush needed when switching

How long can I go between oil changes with this formula?

Motul 5100 4T is formulated for oxidation resistance and viscosity stability, supporting longer service intervals when permitted by your vehicle manufacturer and riding conditions. While exact drain intervals vary, this oil can reduce the frequency of changes compared with conventional grades under normal use.

• Oxidation-resistant additive package for extended service life
• Technosynthese base stocks that resist viscosity breakdown
• Manufacturer-recommended intervals still apply; up to 16,000 km may be achievable in some conditions

Who is this for? Motul 5100 4T 10W-40 is targeted at riders and owners of 4-stroke motorcycles, ATVs, UTVs, scooters and personal watercraft who want a cost-conscious semi-synthetic oil that lifts shifting feel, protects integrated gearboxes, and remains compatible with modern emission systems. It suits daily commuters, sport and touring riders, and powersports operators seeking improved wear protection without stepping up to a full-synthetic racing-grade price point. Always follow your machine manufacturer’s viscosity and service recommendations when selecting oil.