Can Antifreeze Be Used as Windshield Washer Fluid?
2 Answers
Antifreeze cannot be used as windshield washer fluid, as it lacks the cleaning properties of washer fluid. Antifreeze and windshield washer fluid are entirely different and should not be mixed. Precautions for using antifreeze: Always use the same brand of antifreeze. Different brands may have varying formulations, and mixing them could cause chemical reactions between additives, rendering them ineffective. The role of antifreeze: Antifreeze is a coolant with special additives, primarily used in liquid-cooled engine cooling systems. It provides excellent performance in preventing freezing in winter, boiling in summer, and resisting scale and corrosion year-round. The main components of antifreeze are: 50% purified water, 40% methanol, and 10% other substances. Antifreeze replacement cycle: For vehicles that operate for long periods, such as taxis, high-quality antifreeze should generally be replaced annually. Vehicles with shorter operation times can replace it every two years or every 30,000 kilometers. To prevent excessive foaming, which reduces the heat exchange efficiency between antifreeze and engine components, ensure the product is within its validity period when adding it. Long-life antifreeze can last up to three years. If suspended particles, sediment, or discoloration are observed in the antifreeze, replace it promptly and clean the system.
I've been driving for over a decade, and this is definitely not something to cut corners on. The main components of antifreeze are ethylene glycol and water, which are used to cool the engine. Windshield washer fluid specifically contains cleaning agents and antifreeze to clean the glass without freezing or leaving water stains. One winter, I saw someone mix them to save trouble, and the oily substances in the antifreeze smeared all over the windshield—the wipers couldn't even clean it properly. Driving with a blurry, white-covered windshield was extremely dangerous. The residual oil film on the windshield also reflects light, making it unbearable when headlights shine at night. Using purified water in an emergency is better than mixing them haphazardly. If you really need to de-ice, just buy proper windshield washer fluid rated for -25°C.
