TYPE OF USE: Endurance - Rally - GT - Historic racing cars with rebuilt engines; All racing gasoline or diesel engines, naturally aspirated or turbocharged fitted with injection (direct / indirect) or carburetted. For race prepared engines operating over a wide range of rpm and temperatures; ESTER Core Technology: For decades MOTUL has developed high performance synthetic Ester based lubricants by selecting esters over other high performance synthetic base stocks and combining them with an innovative additive package, MOTUL has created a perfect synergy. This most advanced ESTER Core Technology allows maximum power output of the engine without compromising reliability and wear; Advantages: The SAE 15W-50 viscosity enables to compensate medium engine oil dilution by unburned fuel and maintains a stable oil pressure; Maximum oil film resistance at very high temperature: Engine wear is reduced; Friction Modifier: Maximum power output, decrease operating temperature; Low volatility: Oil consumption is reduced. High shear stability: Stable oil pressure whatever using conditions; RECOMMENDATIONS: 300V Competition 15W-50 is particularly recommended for endurance racing engines or old racing engines (rebuilt engines) which need enhanced protection against wear and oil pressure drops. For optimal engine performances avoid mixing with other synthetic or mineral lubricants. Suitable for alcohol based fuel with shortened drain interval. Oil Change : Consult your tuning service partner for the appropriate drain interval.