OTR Light Duty Universal Antifreeze/Coolant 50/50 Premix, with Expertise Built In™, is conveniently ready to use. This OTR antifreeze formula is made with premium ethylene glycol to provide the most satisfactory peak performance for automotive and light duty applications. In addition, this OTR antifreeze formula provides maximum freeze and boil-over protection. At the same time, your investment is protected from corrosion of all cooling system metals, including aluminum. Simply pour fluid into your radiator to ensure your engine's temperature remains stable. This universal antifreeze offers high-performing qualities to keep your vehicle running longer. FleetPride is your First Click in Heavy Duty®.