Motul 300V Factory Line Road Racing 5W40 Synthetic Oil 4L — ESTER Core, High‑Performance Protection

Motul 300V Factory Line Road Racing 5W40 is a 100% synthetic, double-ester motor oil engineered for high-performance and heavily modified four-stroke engines, delivering improved film strength and stable viscosity under extreme conditions.

Built around Motul's ESTER Core® technology, this 4-liter racing oil is formulated to provide superior lubrication, enhanced protection against wear, and stable shear resistance for competition and high-stress street use. Its double-ester base offers strong adhesion to metal surfaces, helping maintain oil film integrity at high temperatures and RPMs. The product is optimized for motorcycles and sportbikes with demanding tune-ups, where preserving power output and reducing mechanical friction are priorities. Note: contains chemicals listed under California Proposition 65; refer to official guidance for details.

How does this oil help engines in track or high-performance riding?

Motul 300V's double-ester formulation creates a durable lubricating film that resists breakdown during high-temperature operation and extended full-throttle use. This reduces metal-to-metal contact, helping prevent wear while maintaining consistent engine response lap after lap.

• ESTER Core® chemistry improves adhesion to moving parts for continuous protection.
• High film strength supports bearings, camshafts, and piston rings under load.
• Stable viscosity preserves oil pressure and flow during extreme thermal cycles.

Will it keep oil properties under heavy shear and heat?

Yes—this racing-grade oil is engineered to resist shear loss, maintaining its viscosity and protective qualities even after severe mechanical stress. Independent test results demonstrate minimal shear degradation compared with conventional synthetic blends.

• Formulated to show negligible viscosity drop in shear tests.
• Designed for sustained high-RPM operation where oil thinning is common.
• Maintains a consistent oil film to protect clearances and tolerances.

Is this oil suitable for modified engines and what protection does it offer?

Specifically developed for heavily modified or tuned four-stroke engines, Motul 300V offers enhanced anti-wear performance and electrochemical bonding characteristics that improve protection of critical components. It’s a popular choice among racers and tuners aiming to preserve engine life under elevated power outputs.

• Electrochemical bonding helps oil adhere to metal surfaces for longer protection.
• Better resistance to oxidation and deposit formation in severe conditions.
• Recommended for engines with performance upgrades, turbocharging, or high compression ratios where robust lubrication is essential.

How should I use this product and meet manufacturer requirements?

Follow your vehicle or engine builder's recommendations for viscosity and service intervals; Motul 300V 5W40 is intended for applications calling for a 5W40 racing-grade oil. Use the correct oil quantity and change intervals based on track usage, tuning level, and environmental conditions.

• Consult your owner's manual or engine builder for compatibility with 5W40 specifications.
• Replace oil and filter according to racing or track maintenance schedules.
• Store in a cool, dry place and dispose of used oil per local regulations.

Who is this for: Motul 300V Factory Line Road Racing 5W40 4L is aimed at competitive riders, track-day enthusiasts, and owners of heavily modified motorcycles or sportbikes seeking a high-performance lubricant that prioritizes film strength, shear stability, and adhesion. If you need an oil engineered to protect under prolonged high loads and to help sustain peak power delivery, this product is tailored to those needs.