Genuine Toyota Long Life Antifreeze/Coolant is a new generation ethylene glycol base premium antifreeze/coolant specifically formulated for all Toyota engine cooling systems. This is the factory red-colored fluid, full-strength (undiluted) antifreeze. Genuine Toyota antifreeze is silicate-free, to protect water pump seals, and borate-free, to prevent pitting/corrosion of aluminum parts. For the newest Super Long Life(pink color) 50/50 Pre-diluted version, see stock # AF-TOY50.