Ravenol RSS 10w60 is a high alloyed fully synthetic race oil for modern gasoline engines based on esters and poly-alpha-olefins (PAO). It is specifically designed motor oil for use by race cars under the heaviest loads and long distances. Its high viscosity index, good shear stability, and highly effective special additives are also suitable for extremely sporty street driving styles. Ravenol RSS offers secure lubrication, even at very highly extreme operating temperatures. Excellent protection against wear, corrosion and foaming. Take comfort knowing your race oil is not the weak spot of the car.