Can I add mineral water to the windshield washer fluid reservoir?
2 Answers
You should not add mineral water to the windshield washer fluid reservoir. The reasons why mineral water cannot replace windshield washer fluid are as follows: 1. Windshield washer fluid is designed to clean the windshield, resist static electricity, prevent fogging, provide lubrication, and offer antifreeze protection. Using mineral water would dilute the washer fluid, potentially affecting the car's performance and even shortening the lifespan of the wiper blades. 2. Mineral water contains various impurities that can form sediment over time, leading to clogged pipes and reducing the lifespan of the reservoir. 3. Without the antifreeze properties of washer fluid, mineral water may freeze in winter, expanding in volume and potentially cracking the reservoir. Continued use could also damage the car's compressor.
I've been driving for over 20 years and once tried adding mineral water to the windshield washer reservoir. The result? The nozzles froze completely in winter and couldn't spray, plus the cleaning effect was terrible because mineral deposits from the water clogged the nozzles and corroded the pipes. Professional washer fluid contains detergents and antifreeze that effectively clean without freezing. Now I always use genuine washer fluid to avoid costly repairs later. As fellow drivers often say: don't cut corners to save pennies - it costs little but ensures driving safety, especially during rain or snow when clear visibility is crucial. I recommend keeping a bottle in your car for top-ups anytime.
