Motul 300V 15W-50 Motorcycle Engine Oil 4L — Full Synthetic Ester Core, Factory Line Racing

This oil blends Motul's ESTER Core® chemistry with a 15W-50 viscosity to deliver durable film strength, reduced internal friction, and consistent behavior at high temperatures. It's formulated for modern sport motorcycles and a wide range of powersports machines—motorcycles, dirt bikes, ATVs, UTVs, snowmobiles and personal watercraft—offering race-derived lubrication in convenient 1L and 4L sizes. The Factory Line Road Racing grade targets riders who demand sharper throttle response, reliable clutch performance, and long-term component protection during sustained high-load use.

How does this oil improve engine power and throttle response?

ESTER Core® molecules form a strong affinity with metal surfaces, creating a low-friction boundary that lets moving parts operate more freely. That reduction in internal drag can translate into more usable power and crisper throttle feel without altering engine tuning.

• Advanced synthetic esters reduce friction at contact points for improved mechanical efficiency.
• 15W-50 viscosity maintains a protective film across a wide temperature range.
• Designed for high-RPM engines to release hidden horsepower during aggressive riding.

Will it work well with wet clutches and integrated gearboxes?

Yes—this formula is developed specifically for systems where engine oil and transmission share fluid. It ensures consistent clutch engagement and smooth gear changes while protecting transmission components from excessive wear.

• Balanced friction properties to prevent chatter and ensure predictable clutch feel.
• Stable shear resistance to keep lubricant viscosity consistent under load.
• Engineered compatibility with both wet and dry clutch configurations in modern sport bikes.

Can it handle high temperatures and prolonged track use?

The Factory Line Racing formulation emphasizes thermal resilience and film durability, so it resists breakdown during sustained high-RPM sessions. That keeps critical bearings and cams protected during intense track stints or heavy street use.

• High-temperature film strength reduces metal-to-metal contact when engines run hot.
• Superior shear stability preserves viscosity after repeated stress cycles.
• Maintains cleanliness to minimize deposit formation under severe conditions.

Is this product compatible with catalytic converters and modern emissions systems?

Formulated to meet the needs of contemporary engines, this lubricant is safe for use in machines with or without catalytic converters. It balances performance with the chemical characteristics required by emissions-sensitive components.

• Suitable for engines equipped with catalytic after-treatment devices.
• Meets lubrication demands of high-output four-stroke designs without compromising emissions hardware.
• Available in multiple pack sizes, including 4L for routine service intervals.

Who is this for: Motul 300V 15W-50 Factory Line Road Racing 4T is aimed at riders and teams seeking race-level lubrication for high-performance 4-stroke machines—track racers, sportbike enthusiasts, and owners of heavy-duty powersports vehicles who want improved throttle response, dependable clutch operation, and durable protection under extreme operating conditions. Choose the 4L pack if you perform regular servicing or need a backup supply for intensive riding schedules.