Product Description
STARFIRE Full Synthetic 5W40 HD Engine Oil is specially engineered for heavy duty diesel and gasoline engines operating under all service conditions. It is formulated using premium synthetic base oils and advanced additive technology to provide the ultimate protection against wear, soot control, and extended drain protection. The low viscosity, full synthetic base stocks increase oil flow at cold engine startups in sub-zero temperatures, thereby reducing friction and wear due to lack of oil flow.
