STARFIRE Synthetic Blend Motor Oils are fully licensed motor oils that meet or exceed the latest manufacturer’s requirements for use in passenger car, SUV and light duty truck gasoline engines, powerboats, motorcycles and other stationary and mobile equipment. They are formulated from selected highly refined paraffinic base oils, synthetic base oils and carefully selected advanced additive technology to provide superior thermal and oxidation stability, corrosion and valve train wear protection and prevent the formation and accumulation of deposits and sludge.