How to Replace Summer Windshield Washer Fluid in Winter?
2 Answers
If it's the same brand of windshield washer fluid, there's no need to drain the summer fluid - you can directly add the winter fluid as they are mixable. For different brands, first completely drain the summer fluid before pouring in the winter formulation. To remove summer fluid, simply hold down the windshield washer button until the system is emptied. Locate the filler neck (typically marked with a washer symbol and blue cap), open the cap, and pour in the winter windshield washer fluid.
I remember the first winter when I didn't change the windshield washer fluid, and all the nozzles froze—it was beyond stressful. Later, I got smarter and started preparing before the cold hit: First, pop the hood and locate the washer fluid reservoir. I usually use a syringe or small tube to drain the remaining liquid, or simply press the washer button multiple times until it's completely empty. If the old fluid isn't fully drained, mixing it with new antifreeze can reduce its effectiveness or even fail to lower the freezing point enough. When adding new fluid, choose one specifically designed for winter, with the freezing point clearly labeled on the bottle—options range from -15°C to -30°C, depending on where you live. Friends in northern regions should opt for fluid with stronger antifreeze properties. Use a funnel to pour it in slowly, avoiding overfilling, and keep an eye on the reservoir's marked lines. After refilling, start the car and test the spray to ensure it flows smoothly, while also checking for any clogged nozzles. This simple habit can prevent poor visibility during smoggy weather and make driving much safer.
