What is the method for making homemade windshield washer fluid for cars?
2 Answers
Mix 500ml of 95% alcohol, 2 liters of purified water, and a capful of detergent thoroughly to create homemade windshield washer fluid. Below is an introduction to the functions of automotive windshield washer fluid: 1. Cleaning performance: Windshield washer fluid is composed of various surfactants and additives. Surfactants typically have functions such as wetting, penetrating, and solubilizing, thereby achieving the effect of cleaning and removing dirt. 2. Antifreeze performance: It can significantly lower the freezing point of the liquid, thus providing antifreeze effects and quickly dissolving frost. 3. 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 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, providing anti-static properties. 5. Lubrication performance: Its higher viscosity can provide lubrication, reducing friction between the wiper and the glass, thereby preventing scratches.
I usually mix my own windshield washer fluid, and it's super simple. Find a large bottle, use purified water or boiled and cooled tap water—don't use tap water directly to avoid scale buildup. Then add dish soap in proportion, typically 5ml for every 2 liters of water is enough. Dish soap can remove grease, but avoid laundry detergent as it may clog the nozzles. In summer, you can add some household alcohol as an insect repellent. In winter, when temperatures drop below freezing, switch to an antifreeze formula—remember to use 95% alcohol mixed with purified water, half a pound of alcohol per 2 liters of water to prevent freezing down to -15°C. Finally, add a bit of white vinegar to prevent fogging, but be careful not to add too much to avoid corroding rubber hoses. I've been using this method for three years without any nozzle clogs—the key is using purified water.
