Can Coolants Be Mixed?

[LaAmy]

Coolants should not be mixed. Two different coolant additives must never be mixed together, as different brands of coolants have different chemical compositions. Mixing them can easily lead to chemical reactions, which may severely damage rubber seals, often resulting in leaks at the water pump seal or weld points. Precautions for Mixing Coolants: Always use the same brand of coolant. Different brands of coolants may have varying production formulations. If mixed, multiple additives may react chemically, rendering the additives ineffective. Coolant Replacement Cycle: For vehicles that operate for extended periods, such as taxis, high-quality coolants 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 can reduce 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.