Do Modern Cars No Longer Need Water?

1 Answers
AaronAnn
07/29/25 2:07pm
Modern cars do not require water; antifreeze is sufficient. Here are the reasons why cars no longer need water: Water is prone to evaporation: In the early stages of automotive development, engine cooling was indeed achieved using a water circulation system. When the engine temperature rises, water tends to evaporate as the temperature increases. During normal engine operation, continuous water circulation cools the engine. However, over time, the water in the radiator gradually decreases due to evaporation, necessitating frequent refills. Water is prone to boiling: Since water boils at 100°C and the normal operating temperature of an engine ranges between 85-100°C, the water in the radiator can become extremely hot during normal operation. If the engine runs for an extended period or under heavy load, the water in the radiator is likely to boil. Once boiling occurs, it can no longer effectively cool the engine, triggering a high-temperature warning and causing the engine to malfunction, requiring the vehicle to stop and cool down.
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