Zerex Antifreeze and coolantProtection for up to 5 years and up to 150, 000 milesOrganic Acid Technology minimizes corrosion inhibitor depletionContains no silicates, phosphates, borates, nitrates, or aminesExcellent rust and corrosion protectionHelps prevent boil overs and freeze upsProtects all cooling system metals including aluminum1 gallon Antifreez Dexcool Gl