Is it okay to not add windshield washer fluid for a long time?
2 Answers
It is okay for a car to go without windshield washer fluid for a long time. Not using this function does not cause any wear and tear on vehicle components. However, prolonged use of the cleaning function without water can damage the motor. Windshield washer fluid has antifreeze properties: Windshield washer fluid should have a certain antifreeze capability. Most commercially available washer fluids can withstand temperatures down to -20 degrees Celsius, with the lowest antifreeze temperature reaching -115 degrees Celsius. Therefore, in terms of antifreeze performance, tap water cannot be used as a long-term substitute for windshield washer fluid. Windshield washer fluid has anti-corrosion properties: Windshield washer fluid contains various corrosion inhibitors that do not corrode metal parts, car paint, or rubber, thus protecting the car paint and pipelines. Tap water contains impurities, chlorine, and other substances. Using it as windshield washer fluid for a long time may lead to scale formation, clogging the washer nozzles and causing component damage, as well as potential pipeline corrosion.
I used to drive for several years and thought skipping windshield washer fluid was no big deal, since rainwater could suffice in a pinch. But after actually doing this, my windshield accumulated layers of grime and insect residue, the wipers squeaked painfully when operating dry, and the rubber blades quickly hardened and cracked. Washer fluid contains detergents to remove contaminants while lubricating the wiper blades—neglecting it forces components to grind against each other. Over time, this not only impairs driving visibility (especially during rain or at night when road conditions become unclear), but also risks clogging the nozzle system. After one long trip when my wipers stopped spraying, mechanics discovered fully blocked tubing—costing hundreds to repair. While the car won't immediately break down, the safety hazards are significant. My advice: don't penny-pinch here. Just refill a bottle periodically.
