Ensure your truck is Ready for the Road Ahead™ with maximum engine protection, with the Mystik® JT-8® SAE 15W-50 Super Heavy Duty Engine Oil, 55-Gallon. To defend against oxidation and resist oil breakdowns, this replacement formula is designed with a specialized mix of quality base elements. It is fashioned to keep your motor in prime condition by sealing microscopic spaces, leading to better fuel economy and reduced engine wear. FleetPride is your First Click in Heavy Duty®.