TOYOTA Long Life -70C coolant. It ensures excellent protection from corrosion, does not freeze in cold weather and does not boil in hot summer. Instructions: When replacing or topping up the coolant, follow the instructions specified in Toyota car user’s guide. 1. Drain and flush the cooling system. 2. Pour Toyota long-lasting coolant in. For year-round engine protection, Toyota recommends to use the mixture of the long-lasting coolant and water in 50/50 proportion. The proportion of the coolant and water must not exceed 70 to 30. Pour the proper mixture of the coolant and water into the radiator and the expansion tank of the cooling system.