Motul's 300V Competition 0W-40 is a fully synthetic car racing engine oil built on the brand's ESTER Core® technology. The manufacturer lists it for all racing gasoline or diesel engines, naturally aspirated, turbocharged or supercharged, with direct or indirect injection or carburetted, and it is suitable for gasoline, diesel and biofuels, especially ethanol. Its main case over a street 0W-40 is the manufacturer's claim of high shear stability for maximal oil film resistance and increased oxidation resistance for longer engine and oil life. The 300V range also carries LSPI protection, which matters for direct-injection turbo builds.
Note that the manufacturer rates this oil only as above existing standards and names no specific OEM approvals. Owners on user forums point out it is not MB-approved, and some caution that it lacks the detergents needed for long drain intervals. Check your owner's manual before using it in a street-driven car under warranty. Per the manufacturer's current data sheet, the oil is a 0W-40 SAE J 300 grade with a 222.0 °C flash point and a -51.0 °C pour point.
The manufacturer rates it as above existing standards rather than listing specific automaker approvals. Owners on user forums advise confirming against your owner's manual before using it in a warrantied street car.
Details vary. Owners on user forums commonly change it far more often than a conventional street oil, especially after track use, and some recommend a used oil analysis over the first few changes. Confirm the right interval with the manufacturer for your use.
This is a standard drain-and-refill oil change, so it suits a home mechanic with basic hand tools, a drain pan, and a filter wrench. Confirm the fill capacity and filter part number for your engine in the owner's manual before ordering. Owners on user forums report that ester-based oils are not harmful to seals, but changing the oil and filter sooner after track sessions is the common practice.
