Lucas oil synthetic racing engine oil has been specifically blended to reduce friction like a zero weight oil but also protect like a heavy weight multi viscosity oil. The additive package in the oil contains high levels of Zinc, Molybdenum and Phosphorus for excellent film strength even under the most arduous conditions.Reduces friction releasing more engine powerExcellent film strength ideal for high power /high RPM race enginesPromotes lower oil temperatures and extended oil lifeFully compatible with all racing fuels1 Quart (0.946 litre) or 5 Quart (4.73 litre) bottles.5W20 Synthetic Racing Oil Technical Data Sheet5W30 Synthetic Racing Oil Technical Data Sheet10W40 Synthetic Racing Oil Technical Data Sheet20W50 Synthetic Racing Oil Technical Data Sheet