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Windshield Wiper Fluid Damages Your Car

8.3K views 11 replies 9 participants last post by  SubzeroAWD  
#1 ·
#3 ·
Windshield washer fluid contains alcohol to lower the freeze point. So yes, alcohol can damage paint and plastic. However typically not an issue. A major issue I see is deterioration of the wiper blades. Alcohol strips polymers from the material and it becomes brittle. Inexpensive replacement blades typically are more prone to damage. Some deicing fluids used on the roads can cause issues too.
 
#4 ·
I'm one of those people who really hates crap on my windshield, so I use the washers a lot. In almost 46 years of driving, I've yet to see any issues from it. I go through a jug of washer fluid pretty quickly, and I use the RainX or this other stuff they sell at Meijers, but for decades, I used the blue stuff, and nothing happened. Maybe it made the wiper blades go bad early, but I don't give a crap about that. Worrying about this kind of thing is insane, IMHO.
 
#7 ·
As a side bar, I ponied up for a pair of Rainex silicone wiper blades and turned out to be the best I’ve ever tried. They’re expensive but with no streaking or squeaking, worth every cent to me. I put them on my truck which sits baking in the sun every day and silicone is showing no signs of degrading, like rubber, for over a year now.
 
#8 ·
I was just thinking since my windshield wiper fluid is kind of low. If I live in socal where it doesn't really freeze do I need the wiper fluid to be alcohol to lower freeze point? Can I just due a distilled water solution so it doesn't have alcohol and it won't leave water marks if it has no minerals (being distilled)?
 
#9 ·
I buy Quick Detailer by the gallon.
However you could just use a bottle of it--Mix it with some distilled water 50/50.. very paint friendly.
The heat off your motor, will usually prevent any type of washer fluid freezing.
If it's cold out, just wait till you have driven it for a few minutes...
 
#11 ·
Are you referring to this?


It didn't seem good for windows?

Q: Repeating the question about whether it can be used on ppf (which is not glass) that has not been answered. thanks.
A: I have used product on paint, plastics, resins, glass and metal. The only use I will not try again is glass as in windows and especially windshields. It leaves a residue that hinders windshield wiper effectiveness. All others worked to my satisfaction

This guy in this video


Is using a rinse-less wash solution. Being that it is already safe on the car is that the way to go? Maybe use with distilled water?