6L Motul 300V Competition 15W50 Oil Kit + Engine Flush

Risks of hot oil pressure drop and sludged crankcase on race engines

On a race engine, high-boost tuned engine, or track car operating under extreme oil temperatures (exceeding 130°C), using an overly fluid oil grade or one contaminated by old deposits exposes your engine to immediate mechanical breakdown. An oil circuit clogged with sludge and oxidation residues restricts lubricant flow, promotes cavitation, and risks triggering devastating rod bearing seizure during hard acceleration.

By filling your engine with high-performance oil without pre-flushing, you instantly degrade fresh oil structure with remaining impurities. Choosing the Motul 300V Competition 15W50 Oil Change Kit (6-Liter pack) combined with Engine Flush purifies the crankcase and ensures maximum mechanical resistance for your sports vehicle under extreme thermal load.

Combining the exceptional oil film thickness of Motul 300V Competition 15W50 (2L can Ref: 110824) with the deep-cleansing power of Motul Engine Flush 300ml (Ref: 104975), this kit frees stuck piston rings and guarantees unwavering oil pressure under harsh conditions.

ESTER Core® 15W-50 Technology: Extreme bearing protection and shear resistance

Thanks to its high-shear-resistant 50 hot viscosity grade, the 100% synthetic 300V Competition 15W50 formula offsets fuel dilution and maintains optimal piston ring sealing. It is the ultimate choice for meticulous maintenance, endurance racing, drift events, or technical engine customization on radical builds.

Compatible Models & Vehicles (6-Liter Pack)

This 6-Liter kit (3x 2L cans) provides the ideal volume for a complete oil change with filter replacement while retaining a spare reserve for top-ups:

• BMW M3 (E36, E46, E92) & M5 – Ideal protection for bottom end and rod bearings during intensive track use.
• Porsche 911 (Air-cooled & Water-cooled), Cayman & Boxster (Trackday / Racing) – Maintains perfect oil pressure at high RPM and elevated temperatures.
• Subaru Impreza WRX / STI, Mitsubishi Evo & Nissan GT-R / Skyline – Maximum protection for forced-induction engines with high turbo boost.
• Drift & Endurance Vehicles (V8, 2JZ, RB26, SR20 engines) – Engineered to withstand rev-limiter holding and extreme heat.

Optimiz Access Expertise for Your Automotive Passion

Since 2010, Optimiz Access selects exceptional lubricants, filtration components, and chassis parts for the customization and maintenance of sports and premium vehicles (Renault Sport, Audi, Volkswagen, Porsche, Mercedes, BMW). Based in Northern France, our expert technicians perform servicing, installation, and track car preparation. We ensure strict quality control and fast worldwide shipping.

Frequently Asked Questions about 300V Competition 15W50 Oil Kit (FAQ)

Why is it essential to flush the engine with Engine Flush before pouring 15W50 oil?
The cleaner dissolves oxidation sludge and clears oil galleries. Injecting 300V 15W50 into a clean crankcase allows Ester molecules to bond directly to metal surfaces for maximum protection.

When should I choose 15W50 over 10W40 or 5W50 viscosity grades?
15W50 is recommended when your engine operates at extremely high oil temperatures (summer track days, racing, drift) or features enlarged bearing clearances requiring an ultra-thick oil film when hot.

Protect your engine against extreme stress today

Don't risk oil film failure under full boost. Trust the quality of the competition range supplied by Optimiz Access and order online today.

Note: High-performance oil filters, oil pan gaskets, and racing coolant fluids are available at the bottom of this product page.