"Concentrate Extended Life Antifreeze Coolant Requires “At-Site Dilution” For cars and light-duty trucks OAT “NAPS FREE” technology for gasoline engine service in domestic and import brands specifying OAT coolant (mixes with other color OAT and HOAT products) Does not contain 2-EHA Summer And Winter Cooling System Protection from -84F to +276F (with 15 psi cap)"