Product Details: Ensure your truck is Ready for the Road Ahead™ with maximum engine protection, with the Valvoline Premium Blue SAE 15W-40 Heavy Duty Diesel Engine Oil 1-Gallon. Due to its specialized mix of quality base elements, this replacement formula defends against oxidation while resisting oil breakdowns. Developed to keep motors in prime condition by sealing microscopic spaces, resulting in improved fuel economy and reduced engine wear. <br/><br/>FleetPride is your First Click in Heavy Duty®.