A modern, fully synthetic, fuel-saving, low friction multigrade engine oil developed for the latest generation of race and rally engines. It has full OEM approval from Mercedes-Benz, Renault, GM and BMW. This oil is not only impressive as a result of its low sulphate ash content but also offers reduced HTHS viscosity for measurable fuel savings, even when driven hard. It therefore not only reduces the amount of fuel carried (and therefor weight) but also contributes to reducing emissions and protecting the environment. The incredibly low shear rate of RAVENOL USVO Racing Engine Oils is a major factor in dramatically reducing fuel dilution when running at full throttle. As a result of the use of special tungsten based additives, RAVENOL REP 5W-30 Racing Engine Oil provides the ultimate protection when driving on the limit. It utilizes the positive properties of tungsten to smooth the surface structure of the motor, reducing friction and wear, and significantly improving mechanical efficiency. It provides a safe layer of lubrication, even at very high operating temperatures and provides extensive protection against corrosion (oxidation) and foaming. This popular racing engine oil has been used and recommended by BTC Racing in the BTCC and by many of our other motorsport partners.