Unleash the Clarity Defrosting Frozen Car Washer Fluid

... washer fluid to a -20 rated fluid from Halfords. (Which I dilute as required but never to less than -10 in winter. Never had an issue in any car. Try to remove old liquid, buy CONCENTRATE(-70 degrees freezing temp.) and dilute with distilled water. If the stuff is freezing in the nozzle, it will freeze on the windshield, especially if you're moving. The stuff will freeze on the windshield ... Well, if the "fluid froze" up at 18 degrees, then your -25 degree washer fluid is dropping the ball, so to speak.... OR... Is there: Any chance ... The most effective way to keep your windshield washer fluid from freezing is to add freeze-resistant washer fluid in place of your old fluid. Over the years, I've had numerous vehicles that sat OUTDOORS in sub-freezing weather and only once did I have the wiper fluid freeze up. And ... You can mix isopropyl alcohol in with your fluid and keep it from freezing. I forget the ratios but you can google it. Just make sure you run it ... You didn't need to heat it. The alcohol in the cold weather fluid would automatically lower the freezing point and thaw things out. You need to ... Boiling water is far to hot, use plenty of warm water to unfreeze things. Washer fluid should be 25% in summer but between 50% to 100% in winter ... That day I realized a much simpler and just as effective fix: drill a hole in the filler neck just below the cap, and drill a hole in the cap ...