What are the precautions for adding water to a car?

[VanAllie]

When adding water to a car, it must be specialized water for the radiator or qualified antifreeze. The following is an introduction to the function and structure of a car radiator: Function of the radiator: When the engine's water temperature is high, the water pump circulates water repeatedly to lower the engine's temperature. (The radiator is composed of hollow copper tubes. High-temperature water enters the radiator, is cooled by air, and then circulates back to the engine cylinder walls) to protect the engine. Structure of the radiator: The car radiator is mainly composed of a radiator core, water pipes, cooling fins, an upper tank, and a lower tank. The upper tank is located on the radiator, connected to the lower tank via water pipes. Hot water flows from the upper to the lower tank, turning into warm water. The cooling fins form air channels, and through the suction of the fan and the relative wind speed when the car is moving forward, a large amount of cold air passes through these channels, absorbing the heat from the cooling water flowing through the pipes and then dissipating it into the atmosphere.