Can You Add Mineral Water to a Car Radiator?

[LaAlana]

No. Here is the relevant information: 1. Introduction to Car Radiator: The car radiator, also known as the heat exchanger, is designed to cool the working engine, preventing mechanical overheating and metal expansion that could affect the car's operation. Generally, the radiator should be filled with dedicated car antifreeze. Antifreeze has characteristics such as anti-rust properties, a low freezing point, and a high boiling point. 2. Disadvantages of Adding Tap Water: (1) It produces more rust than antifreeze, which is detrimental to the smoothness of the engine's water channels; (2) It has a lower boiling point than antifreeze, making it prone to boiling; (3) Tap water is likely to freeze in winter when temperatures drop below zero degrees Celsius. 3. Adding Mineral Water Can Easily Cause Overheating: Under normal pressure, the boiling point of water is approximately 100°C. Modern cars commonly use high-performance engines that, under normal operation, can reach temperatures of 90~100°C, with some engines even reaching up to 110°C. In such cases, if the car radiator is filled with water, it is highly prone to overheating, making it unable to cool the engine effectively.