Product Details: Ensure your semi is Ready for the Road Ahead™ with an optimal level of coolant, with the Fleetguard CC2745 Fleetcool EX EG 50 / 50 Premix 55-Gallon. Thanks to its pre-mixed formula, this antifreeze / coolant is able to return a cooling system to ideal levels, and properly chill the radiator and engine. Crafted with a phosphate-free formula to deliver superior liner protection for extended intervals. FleetPride is your First Click in Heavy Duty®.