ENGINE OIL TREATMENT is a fast-action, multi-power oil additive engineered for high performance engines. It is engineered to improve the oil by helping to retain its normal viscosity during constant changes in temperature. By coating the engine with a film of oil, ENGINE OIL TREATMENT prevents premature wear, improving engine performance and prolonging engine life. This product also helps stop oil burning, reduces hydraulic valve lifter noise and improves compression. It is compatible with both petroleum and synthetic oils. In addition, ENGINE OIL TREATMENT is recommended for use in both gasoline and diesel engines.