What Temperature Windshield Washer Fluid Should Be Used in Winter?
4 Answers
In winter, you should choose a windshield washer fluid with a freezing point at least 10°C lower than the local minimum temperature. Here is some relevant information about windshield washer fluid: 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. Antifreeze performance: It can significantly lower the freezing point of the liquid, thus providing antifreeze protection 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.
I remember when driving in the north during winter, it's essential to choose windshield washer fluid with antifreeze properties, and its freezing point should be at least 10-15°C lower than the local minimum temperature. I usually use fluids rated for -20°C to -35°C, and the brand doesn’t matter much, but the label must clearly indicate the freezing point. Don’t cut corners by using summer fluid rated for 0°C, and avoid mixing different brands, as it can affect performance. When adding the fluid, make sure the reservoir is clean and don’t fill it to the brim—leave some space. If you accidentally use regular washer fluid and the temperature drops, it can freeze and clog the nozzles, making it impossible to clean the windshield, which is a serious safety hazard due to impaired visibility. It’s best to switch to the appropriate fluid in autumn and make a habit of checking the fluid level—it’s both safer and more convenient.
The temperature of windshield washer fluid refers to its freezing point. In winter, you should choose an antifreeze type, with freezing points ranging from -5°C to -35°C. The specific temperature you need depends on where you drive. I usually refer to the local weather forecast. For example, in the south where winter temperatures drop to -5°C, I use -15°C fluid, while in northern sub-zero areas, you need -25°C or lower. The composition includes ethylene glycol and additives to prevent freezing. I recommend purchasing dedicated antifreeze fluid from supermarkets—it’s affordable, just a few dollars per bottle. When refilling, drain the old fluid first before adding the new one to avoid mixing, which can reduce antifreeze performance. Also, ensure the nozzles don’t freeze by periodically activating the washer to keep the fluid flowing.
Safety first, winter windshield washer fluid must be freeze-resistant. I recommend using a fluid with a freezing point of -15°C or lower, at least 10°C below the local average low temperature to ensure protection. Don't cut corners by using tap water, as freezing can damage the pump and pipes. When adding fluid, ensure the reservoir cap is tightly sealed to prevent moisture from entering and freezing. Replace old fluid promptly to keep the system clean. Remember, extremely low temperatures can clog the nozzles, impair visibility, and increase accident risks.
