What Temperature Windshield Washer Fluid Should Be Used in Winter?
2 Answers
In colder regions, windshield washer fluid with a freezing point of -30 degrees Celsius should be used in winter. Here are some details about windshield washer fluid: Anti-freeze Windshield Washer Fluid: Whether you need to drain the windshield washer fluid in winter depends on whether the fluid in the reservoir is anti-freeze type. If you previously used summer windshield washer fluid, meaning its freezing point cannot meet winter requirements, it must be drained and replaced with anti-freeze windshield washer fluid. Otherwise, there is a risk of the fluid freezing, which could damage the reservoir or the washer pump motor. Introduction to Windshield Washer Fluid: Automotive windshield washer fluid is formulated with various surfactants and additives, providing functions such as wetting, penetrating, and solubilizing to effectively clean and remove dirt. It significantly lowers the freezing point of the liquid, offering anti-freeze properties and quickly dissolving frost. Additionally, it prevents the formation of fog droplets, ensuring clear visibility through the windshield.
As an average car owner, you have to be careful with windshield washer fluid in winter, since it can freeze and obstruct your view when temperatures drop too low. I usually check the local weather forecast for the lowest expected temperature—for example, if it’s predicted to be -20°C, I’ll buy antifreeze washer fluid with a freezing point below -25°C, which is always labeled on the bottle. Never try to save money by using summer-grade fluid, or it’ll freeze as soon as you spray it, and the nozzles can easily get damaged. Last year, I forgot to switch it out once, and when my windshield fogged up while driving, the fluid wouldn’t spray—it almost caused an accident. My advice is to check the washer fluid reservoir before winter arrives and buy specialized brands like Blue Star or universal types, making it a habit to keep it topped up. Safe driving is the top priority, and poor visibility increases accident risks, so choosing the right freeze protection level is not something to take lightly.
