To prevent malfunctions and ensure visibility in winter, what product should be added to the water in the windshield washer reservoir?

Question

DentroTest · Accepted Answer

The correct answer is Antifreeze. Pure water freezes at 0ºC. If this happens inside the windshield washer system, it carries two serious risks: first, the inability to clean the glass, resulting in a loss of visibility; second, as water freezes, it expands and can crack the reservoir, burst hoses, or burn out the electric pump when you try to use it. Detergent cleans but does not prevent freezing, and anti-limescale prevents clogs but offers no protection against extreme cold.

To prevent malfunctions and ensure visibility in winter, what product should be added to the water in the windshield washer reservoir?

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