What Are the Main Components of Windshield Washer Fluid?
2 Answers
Windshield washer fluid is primarily composed of water, alcohol, ethylene glycol, corrosion inhibitors, and various surfactants. Below is an introduction to the functions of automotive windshield washer fluid: Cleaning Performance: Windshield cleaner is formulated with multiple surfactants and additives. Surfactants typically have functions such as wetting, penetrating, and solubilizing, thereby achieving cleaning and stain removal. Antifreeze Performance: It can significantly lower the freezing point of the liquid, providing antifreeze effects and quickly dissolving frost. Anti-Fog Performance: A single-molecule protective layer forms on the glass surface. This protective film prevents the formation of fog droplets, ensuring the windshield remains clear and transparent with a sharp field of vision. Anti-Static Performance: After cleaning with windshield cleaner, substances adsorbed on the glass surface can eliminate surface charges, providing anti-static properties.
Windshield washer fluid is a crucial component for cleaning the windshield while driving. Based on my frequent usage and experience, its basic composition includes water, which dissolves dirt; antifreeze agents like ethanol or methanol, added at 15% to 30% to prevent freezing in winter; surfactants to remove oil stains and insect marks; corrosion inhibitors to protect metal parts and reduce rust; and finally, a bit of fragrance and dye to make it smell pleasant. I recommend purchasing a version with higher antifreeze content for winter, while the regular type suffices for summer. Avoid substituting it with tap water, as it can clog the spray nozzles or freeze, impairing visibility. For maintenance, replace the fluid every season—it's both cost-effective and safe.
