ZEREX™ G30® Antifreeze/Coolant is a premium carboxylate formulation. It incorporates state-of-the-art organic acid technology in an ethylene glycol base for protection of all cooling system metals including aluminum. It meets the silicate-free requirements of the Japanese automobile manufacturers and phosphate-free requirements of European automobile manufacturers. Valvoline™ recommends G30 for late model GM®, Jaguar®, European Ford® and VW® vehicles. It is dyed red to distinguish it’s unique chemistry from traditional green and yellow silicate coolants.