Achieve maximum engine protection so your truck can be Ready for the Road Ahead™, with the Citgo Mystik® JT-8® SAE 15W-50 Super Heavy Duty Motor Oil 5-Gallon. This replacement formula naturally resists oil breakdowns and defends against oxidation thanks to its mix of quality base elements. Engineered to seal microscopic spaces in the motor and keep engines in prime condition by reducing wear while improving fuel economy. FleetPride is your First Click in Heavy Duty®.