Should Unused Summer Windshield Washer Fluid Be Replaced in Winter?
2 Answers
Whether to replace unused summer windshield washer fluid in winter depends on the local temperature conditions. If the temperature is below 0 degrees Celsius, it is recommended to switch to antifreeze windshield washer fluid. Introduction to Windshield Washer Fluid: Windshield washer fluid, also known as wiper fluid, is a type of cleaning solution for car windshields. It is primarily composed of water, alcohol, ethylene glycol, corrosion inhibitors, and various surfactants. Functions of Windshield Washer Fluid: Cleaning: Windshield washer fluid is formulated with multiple surfactants and additives, providing functions such as wetting, penetration, solubilization, and dirt decomposition, effectively cleaning and removing grime. Antifreeze: The alcohol and ethylene glycol in the fluid lower the freezing point of the liquid, not only preventing freezing but also dissolving frost. Anti-fog: The fluid forms a single-molecule protective layer on the glass surface, preventing the formation of fog droplets on the windshield and ensuring clear driving visibility. Anti-static: After cleaning the windshield, the substances adhering to the glass surface eliminate static charges, giving the fluid anti-static properties. Lubrication: The ethylene glycol in the fluid has high viscosity, providing lubrication to reduce friction between the wiper blades and the glass, preventing scratches.
I've been driving for over a decade, and let me tell you from the heart - never use summer windshield washer fluid in winter. Last month, my neighbor Old Zhang had to spend over 500 yuan repairing his washer pump because it froze from using summer fluid. Summer washer fluid contains no antifreeze and freezes around 0°C. Here in the north where temperatures often drop below -10°C, that fluid turns into solid ice blocks in the reservoir - at best clogging the nozzles, at worst cracking the reservoir. I suggest you use up your old fluid these couple days and get a winter formula rated for at least -25°C. When buying at the supermarket, make sure to check the labeled freezing point - don't just go for the cheap option.
