Product Details: The Valvoline SAE 5W-40 Synthetic Diesel Oil is formulated with advanced synthetic base stocks and advanced additive technology to provide superior protection and performance. It is designed to provide improved defense against oil oxidation, increased fuel efficiency and high-quality deposit protection. This oil also offers safe operations in cold weather and enhanced thermal characteristics for operations in warmer weather. It is the perfect choice for heavy, medium and light-duty diesel engines.<br/><br/>FleetPride is your First Click in Heavy Duty®.