How often should water be added to the engine radiator?

[LaWeston]

Adding water is not done at fixed intervals but depends on vehicle usage. If the car is frequently used or primarily for long-distance travel, regular attention to the radiator's condition is necessary. When adding water, there are minimum and maximum level marks, and it is generally best to fill to the middle position. Below is relevant information: If the water level in the antifreeze tank falls below the minimum mark (normal capacity should be between MIN and MAX), water should be added promptly. The replacement cycle is typically every two years or every 30,000-40,000 kilometers driven. Vehicles with high usage frequency should consider earlier replacement. Precautions: To prevent excessive foaming, which reduces the heat exchange efficiency between the antifreeze and engine components, ensure the product is within its validity period when adding. Long-life antifreeze can remain effective for up to three years.