Product Details: Achieve maximum engine protection so your truck can be Ready for the Road Ahead™, with the Shell Rotella® T4 SAE 15W-40 Conventional Engine Oil 5-Gallon. Thanks to a specialized mix of quality base elements, this replacement formula naturally resists oil breakdowns and defends against oxidation. Crafted to seal microscopic spaces in the engine and keep your motor in prime condition by improving fuel economy and reducing overall wear. FleetPride is your First Click in Heavy Duty®.