What are the disadvantages of using water to cool an engine?
1. The freezing point of water is high, making it easy to freeze, which affects heat dissipation. Additionally, when it freezes, its volume expands by about 10%, and forgetting to drain the water during winter nights can easily cause cracks in weak areas such as the tank body and cylinder head.
2. Natural water is not pure and contains various minerals such as calcium carbonate, magnesium carbonate, sodium nitride, silicates, sulfides, etc. Calcium and magnesium can easily deposit in the cooling system, forming scale, while chlorides and sulfates can easily corrode metals. Moreover, the quality of natural water varies by region, making it difficult to select natural water that meets the requirements.