Can Windshield Washer Fluid Be Used as a Substitute for Antifreeze?

[McRowan]

Windshield washer fluid cannot be used as a substitute for antifreeze. Antifreeze is designed for the engine cooling system and does not possess the cleaning or other functions associated with windshield washer fluid. Windshield washer fluid is primarily used for cleaning car window glass to remove surface stains, and similarly, it is not suitable for use as a coolant. Antifreeze prevents the coolant from freezing when the car is parked in cold winter conditions, which could otherwise cause the radiator to crack or damage the engine cylinder block. The full name is antifreeze coolant. The functions of antifreeze are: 1. Preventing scale buildup to avoid reducing the radiator's cooling efficiency; 2. Providing antifreeze protection, ensuring the car can continue to operate in low winter temperatures.