The Heavy-Duty antifreeze 50/50 coolant Grün is a product of advanced organic salt technology (SOAT), it is glycol base and contains a package of additives, which protects against corrosion all materials used in the cooling systems, including the aluminum. It is low silicate and phosphate free. The Heavy-Duty antifreeze coolant complies with the international standards of protection and performance for light and heavy-duty vehicles ASTM D 3306 and ASTM D 6210, and offers great stability at elevated temperatures. It also offers a multiphase protection system for the corrosion inhibition, preventing oxidation not only on the surfaces in contact with the fluid, but also on those surfaces in unique contact with steam. It can be used on all brands and models of light and heavy vehicles that require cooling, and where the protection of aluminum at high temperatures is required.