What Kind of Water Should Be Added to the Engine Radiator?

[Dallas]

Under normal circumstances, the engine radiator should be filled with antifreeze coolant. Additional information: 1. Types of antifreeze coolant: Antifreeze coolant has rust-prevention properties and a low freezing point. The colder the region, the lower the freezing point of the antifreeze coolant should be. Tap water is prone to boiling, as its boiling point is lower than that of antifreeze coolant, which can lead to higher engine temperatures. 2. Reasons for using antifreeze coolant include: (1) Tap water causes more rust compared to antifreeze coolant. Although antifreeze coolant may still produce some rust over time, it does so at a much slower rate than tap water, which benefits the smooth flow in the engine's cooling passages. (2) If the region frequently experiences temperatures below zero degrees Celsius in winter, using antifreeze coolant can prevent the radiator from freezing overnight, especially when using high-quality antifreeze.