Claim: Spraying a mixture of vinegar and water on your car's windshield will de-ice it but may also create pits in the glass.
Examples: [Collected via e-mail, November 2013]
1. Spray vinegar & water mix to immediately melt windshield ice
2. Don't spray vinegar & mater mix on windshield because it will 'pock' your windshield.
2/3 cup vinegar and 1/3 cup water mix and spray on icy windows to clear them, that is on facebook a lot. now I see a new one saying the vinegar will pit holes in the glass of the windscreen, any truth in that?
I read that the mixture of 2/3 vinegar and 1/3 water mixture to get ice off your car windows will pit the glass. true or false?
Origins: Claims about using a mixture of vinegar and water to remove ice from a car's windshield usually hit the Internet every year around the time of the first freeze in mid- to late-autumn and during large severe winter storms. In recent years this advice has been widely spread as information suggesting that spraying vinegar and water (mixed in a 2:1 or 3:1 ratio) will remove ice from an already iced-over windshield; however, the tip originated not as a
A: Dip a sponge or cloth into a solution of three parts of either white or yellow vinegar to one part of water. The windshield should stay ice-free. Repeat occasionally.
The issue of whether this method of ice prevention will indeed pit windshield glass is a matter of contention, with some cautioning it does:
Windex (and other glass cleaners) are normally 5% ammonia in some sort of volatile solvent, with some detergents and other chemicals. The more environmentally-friendly variants replace the ammonia with acetic acid. A solution of 5% acetic acid (typical white vinegar) isn't going to hurt anything that 5% ammonia wouldn't.
In general, we've found no consensus about how effective the use of a vinegar-water mixture to remove or prevent windshield ice might be, or whether it carries a potential risk that outweighs its benefits. In general, there are a variety of methods for dealing with windshield ice which motorists can employ, including the use of commercial ice and frost prevention sprays:
Last updated: 9 January 2015