What is the purpose of adding windshield washer fluid to a car?
2 Answers
1. Cleaning performance: Windshield washer fluid is formulated with various surfactants and additives. Surfactants typically have functions such as wetting, penetrating, and solubilizing, thereby achieving the effect of cleaning and removing dirt. 2. Anti-freezing performance: The presence of alcohol and ethylene glycol in the windshield washer fluid significantly lowers the freezing point of the liquid, thus providing anti-freezing effects and quickly dissolving frost. 3. Anti-fogging performance: The windshield washer fluid forms a single-molecule protective layer on the glass surface. This protective film prevents the formation of fog droplets, ensuring the windshield remains clear and transparent with a clear field of vision. 4. Anti-static performance: After cleaning with windshield washer fluid, substances adsorbed on the glass surface can eliminate static charges on the glass. 5. Lubricating performance: The ethylene glycol in the windshield washer fluid has high viscosity, which provides lubrication, reduces friction between the wiper and the glass, and prevents scratches. 6. Anti-corrosion performance: The windshield washer fluid contains various corrosion inhibitors, which are completely safe and non-corrosive to all types of metals, car paint, and rubber.
The purpose of windshield washer fluid is to clean dirt off the windshield, maintain clear visibility, and enhance driving safety. When dust, bugs, bird droppings, or oil stains stick to the glass while driving, simply pressing the wiper button releases the washer fluid to quickly wash away these contaminants, preventing potential accidents caused by obscured vision. I rely on it especially during highway driving or rainy weather—without washer fluid, dirt can accumulate, making nighttime light reflections even more hazardous. Additionally, higher-quality washer fluids contain antifreeze and anti-fogging agents, ensuring functionality even in sub-zero winter temperatures without freezing the nozzles, while also helping dissolve stubborn grease in summer. Remember to check the fluid level every two weeks and top it up—this not only protects the washer system but also prevents pipe corrosion caused by using plain water. A small bottle solves big problems.
