Heavy Duty Nitrite Free Extended Life Coolant 50/50 Yellow

Heavy Duty Nitrite Free Extended Life Coolant 50/50 Yellow is a ready-to-use, extended-life antifreeze/coolant formulated specifically for heavy-duty diesel and gasoline engines. This 50/50 blend of ethylene glycol and deionized water provides excellent freeze protection, efficient heat transfer, and boil-over resistance. The nitrite-free formulation features an advanced corrosion inhibitor package that protects key engine metals—such as aluminum, steel, cast iron, copper, and brass—from rust, pitting, and scaling without the use of nitrites. The bright yellow color allows for easy identification and leak detection. Ideal for commercial trucks, buses, construction equipment, and mixed-fleet applications, this coolant supports extended service intervals, reduces maintenance, and promotes long engine life.