Heavy Duty Nitrite Free Extended Life Coolant 50/50 Red

Heavy Duty Nitrite Free Extended Life Coolant 50/50 Red is a ready-to-use, pre-mixed coolant formulated with Organic Acid Technology (OAT) for extended service life and reliable performance in heavy-duty diesel and gasoline engines. This 50/50 blend of ethylene glycol and deionized water provides excellent freeze protection and heat transfer, while the nitrite-free, phosphate-free, and silicate-free formulation protects all major cooling system metals—including aluminum, steel, copper, brass, and cast iron—from corrosion, pitting, and scale buildup. The red color ensures easy identification and leak detection. Designed for extended drain intervals of up to 1,000,000 miles or 20,000 hours with proper maintenance, Heavy Duty Nitrite Free Extended Life Coolant 50/50 Red is ideal for fleets, off-road equipment, and mixed-metal systems requiring long-term, low-maintenance protection.