HARDEX COOLANT COOL-MAX & COOL-LITE engineered with the outstanding organic corrosion inhibitor package deliver outstanding performance for extended time by providing optimum protection of all metal in vehicle cooling systems. The formulation is free conventional additive  such nitrate , borate and silicate that will cause the scale build up. Organic based will not aggressive to water pump seals hence its compatible with hoses and rubber fittings. Anti-freeze content ensure the temperature stay consistent, allowing the fuel to be completely vaporised so it will burns better with fewer emission.