Heavy Duty Extended Life Coolant 100% Red

Heavy Duty Extended Life Coolant 100% Red is a fully concentrated, ethylene glycol-based antifreeze/coolant engineered for extended service in heavy-duty diesel and gasoline engines. Formulated with Organic Acid Technology (OAT), it offers exceptional protection against corrosion, cavitation, scaling, and rust across all major cooling system metals—including aluminum, cast iron, steel, copper, and brass. This nitrite-, phosphate-, silicate-, and amine-free formulation is designed to reduce maintenance and extend service life up to 1,000,000 miles, 20,000 hours, or 8 years with proper monitoring and supplemental coolant additives (SCAs) where required. The vibrant red color aids in coolant identification and leak detection. Heavy Duty Extended Life Coolant 100% Red is ideal for use in commercial trucks, off-highway equipment, and mixed-fleet applications requiring a high-performance, long-life coolant solution.