Super Tech Prediluted 50/50 Heavy Duty Extended Life antifreeze/coolant is a nitrite-free organic acid technology (OAT) that meets or exceeds ASTM requirements. Free of phosphates, borates, nitrites, silicates, and amines. It provides up to 1,000, 00 miles or 20,000 hours of protection and is recommended for initial fill or top-off in all gasoline or diesel engines. Super Tech Prediluted 50/50 Heavy-Duty Extended Life Antifreeze/Coolant, 1 Gallon: Ready to use Extended service life — up to 1,000,000 miles, 8 years or 20,000 hours of off-road use Free of phosphates, silicates, nitrites, amines, and borates Prevents pitting caused by cavitations and corrosion of brass, copper, solder, steel, cast iron, and aluminum Extended life corrosion protection for aluminum and all other engines metals High-quality defoamer which is non-harmful to hoses, plastics, or gaskets Great for mixed fleets — approved for use in heavy duty and light duty engines Meets or exceeds ASTM 6210. Ideal for CAT EC-1, Cummins, Detroit Diesel, Navistar, or mixed fleets Compatible with the major American brands of organic acid technology coolants on the market today
4.0 out of 5 based on 4,274 reviews 
