Can Tap Water Replace Windshield Washer Fluid?

[EliasDella]

Tap water cannot replace the function of windshield washer fluid. Because water contains impurities, it can easily clog the washer fluid nozzles. When purchasing windshield washer fluid, avoid low-quality products as they can accelerate wiper blade aging. Additionally, prolonged use of tap water to clean the windshield may increase friction between the windshield and wiper blades, leading to scratches on the glass surface. Moreover, tap water can only remove surface dust and is ineffective against other dirt and insect residues. In summer, you can use concentrated wiper fluid as a substitute. Add the concentrated wiper fluid to water, shake it thoroughly, and then pour it into the vehicle as windshield washer fluid. Windshield washer fluid contains specific cleaning agents that effectively clean the glass, which tap water lacks. Therefore, the proper substitute is concentrated wiper fluid, not tap water. Use dedicated windshield washer fluid in winter: During winter, it is essential to use specialized windshield washer fluid with a low freezing point. Otherwise, the fluid may freeze due to low temperatures. When liquids freeze, their volume expands, which can damage the washer fluid reservoir. Windshield washer fluid offers the following features: Cleaning performance: Windshield washer fluid is formulated with various surfactants and additives. Surfactants typically have wetting, penetrating, and solubilizing functions, effectively removing dirt. Antifreeze performance: The presence of alcohol and ethylene glycol significantly lowers the freezing point of the liquid, preventing freezing and quickly dissolving frost. Anti-fog performance: A single-molecule protective layer forms on the glass surface, preventing fog droplets and ensuring clear visibility. Lubrication performance: The ethylene glycol in the fluid has high viscosity, providing lubrication to reduce friction between wiper blades and the glass, preventing scratches. Anti-corrosion performance: The fluid contains multiple corrosion inhibitors, ensuring it does not corrode any metals, car paint, or rubber, making it completely safe.