Can I Add Water If the Car Windshield Washer Fluid Runs Out?
3 Answers
You can add water, but it may cause scale buildup. Here is some relevant information about windshield washer fluid: 1. Types of windshield washer fluid: Windshield washer fluid is a cleaning product that contains no abrasive substances and can quickly remove dirt from glass, leaving it clear and bright. It is suitable for general automotive glass as well as acrylic and plastic windows, such as windshields and sunroofs. Commonly known as "glass water," windshield washer fluid in China's automotive retail market can generally be divided into three types: one is the commonly used summer cleaning fluid, another is the antifreeze type specifically for winter use, and the third is a special antifreeze type. 2. Transportation and storage: Handle with care during transportation to prevent collisions. The product should be stored in a cool, dry, and well-ventilated place.
As a seasoned driver, I strongly advise against simply adding water. Windshield washer fluid isn't just ordinary liquid—it contains antifreeze components that prevent freezing even in subzero winter temperatures. I've seen a neighbor cut corners by using tap water, only to have the entire reservoir freeze and crack at -10°C, costing over 2,000 yuan in repairs. Washer fluid also contains specialized detergents and lubricants that plain water simply can't match—it won't remove insect residue or oil film from the windshield. Last summer when I temporarily used bottled water in an emergency, the wipers left behind nothing but water stains, forcing me to pull over and wipe the windshield again. Using tap water long-term is even worse—it causes mineral buildup in the hoses and pump, and eventually the nozzles can become completely clogged. In a pinch, you can add some distilled water, but you must replace it with proper washer fluid as soon as you get home.
Having driven for ten years, I always go straight to the auto parts store to buy professional windshield washer fluid when encountering this situation. Water can indeed serve as a temporary substitute, but the actual performance is far worse: professional washer fluid won’t freeze at -25°C, while mineral water freezes at 0°C; the minerals in tap water can clog the spray nozzles—my colleague had to replace the entire water pump because of this; wiper blades last two years with washer fluid’s lubrication, but only six months with water, as they age and crack. Remember to choose an all-season type with antifreeze ratings, opt for a formula strong on removing insect residue in summer, and avoid colored variants to prevent pipe contamination. Always keep a small bottle in the trunk for dusty roads, ready to spray anytime.
