Getting ready to put your baby away for the winter? Driving your collector car less during the upcoming season? When the coolant in your system begins to break down, it forms acids that eat away the metal in the cooling system. Oxygen is absorbed into the antifreeze/water mixture, which rusts steel parts and corrodes aluminum. Corrosion Inhibitor shifts the pH balance towards alkaline and neutralizes pre-existing acids, protecting metals from corrosion. Dissolved oxygen is removed from the coolant to help prevent "oxidation" type corrosion (rust). Contains molybdenum, which helps protect aluminum from corrosion and prevents the buildup of silicate and phosphate deposits, the sludge that clogs your system. A superior product that protects your radiator core, heater core, water pump and coolant system from corrosion. 35 ounce bottle treats two systems. (Up to 44 quarts.) Compatible with all glycol-based antifreeze. Exclusively from Griot's Garage.