When you are driving in extreme temperatures, the last thing you need is engine failure. Whether in extreme heat or cold, Toyota Long life Antifreeze/Coolant provides long term corrosion protection to all metals and non metal parts of your vehicle cooling system and protects against boil over and freezing. Toyota Long life Antifreeze/Coolant is the only coolant designed specifically for Toyota vehicles. Use Toyota Long life Antifreeze/Coolant for optimum long term engine performance. It is RED in colour and undiluted.