Can Mineral Water Be Used as a Substitute for Windshield Washer Fluid?

1 Answers
Garrett
07/29/25 8:46pm
Mineral water cannot be used as a substitute for windshield washer fluid. 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 causing various adverse effects on the vehicle and even shortening the lifespan of the wiper blades. Mineral water lacks lubricating properties, and prolonged use can lead to severe scratching of the windshield. Additionally, it increases friction on the wiper blades, resulting in skipping and unusual noises during operation. Mineral water contains various impurities that can form deposits over time, leading to clogged pipes and ultimately reducing the service life of the washer fluid reservoir.
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