Can You Add Water to Coolant in Summer?

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It is not recommended to add water, as doing so will dilute the purity of the coolant, lowering its freezing and boiling points. In emergencies, a small amount of purified water can be added. Coolant Replacement Cycle: For vehicles that operate for extended periods, such as taxis, high-quality coolant should generally be replaced once a year. For vehicles with shorter operating times, replacement can be done every two years or every 30,000 kilometers. To prevent excessive foam formation, which reduces the heat exchange efficiency between the coolant and engine components, ensure the product is within its validity period when adding it. Long-life coolants can remain effective for up to three years. If suspended particles, sediment, or signs of deterioration or discoloration are observed in the coolant, it should be replaced promptly, and the system should be cleaned. The key indicators for coolant are its freezing and boiling points. On the market, coolants are available with freezing points of -15°C, -25°C, -30°C, and -40°C, among others. It is advisable to choose a coolant with a freezing point at least 10°C lower than the lowest temperature in your region.