Lucas oils are manufactured with the highest quality paraffinic base oils and is fortified with a unique additive package, Containing high levels of zinc, molybdenum and phosphorus, which provides a tougher, thicker additive film for maximum protection even under the most severe conditions, Engineered to lower oil temperature, extend oil life and minimizes metal fatigue, The unique formula improves the film strength between the cylinder wall and piston rings and slows oil burning and improves pressure in worn engines, Fully compatible with methanol and all racing fuels, as well as with synthetic and non-synthetic oils.