Heavy Duty Extended Life Coolant 50/50 Red

Heavy Duty Extended Life Coolant 50/50 Red is a ready-to-use, ethylene glycol-based antifreeze/coolant designed for heavy-duty diesel and gasoline engines. This 50/50 pre-diluted blend of ethylene glycol and deionized water delivers excellent freeze protection, boil-over resistance, and efficient heat transfer. Utilizing advanced Organic Acid Technology (OAT), it offers extended service life and superior protection against rust, scale, corrosion, and cavitation across all common cooling system metals—including aluminum, cast iron, copper, brass, and steel. Free from silicates, phosphates, amines, and nitrates, this low-maintenance formulation is designed to last up to 1,000,000 miles, 20,000 hours, or 8 years with proper system monitoring. The bold red color ensures easy fluid identification and leak detection. Heavy Duty Extended Life Coolant 50/50 Red is ideal for commercial trucks, off-road equipment, and mixed-fleet operations requiring durable and long-lasting coolant performance.