Qwix Mix 1-Gallon Windshield Washer Fluid Concentrate, Makes 500 Gallons, Biodegradable Bug, Grime & Dirt Remover Fluid, Commercial-Grade Streak-Free Glass Cleaner for Cars, Trucks & Fleets

Amazing stuff. I made 3 gallons off a small amount. Works amazing and saves loads of money so far Watch out cause it stains anything you get it on and a little goes a long way! Will buy again

This is a great product my Mercedes holds 5 gallons of windshield wiper fluid so it cost me pennies to mix this. Strongly Recommend

This contains biodegradable surfactant (soap) and dye. That's it. Those ingredients will: - wet your windshield and provide a very mild cleaning action - prevent bacteria and other biological stuff from growing in your washer fluid reservoir - give you a warm and fuzzy feeling that you are not dumping toxic material into the environment - in the concentrated form, stain anything blue like your hands and furniture They won't: - prevent it from freezing. This is clearly stated in the product description - make a real window cleaning solution, like Windex (which you don't really want) All the reviews about it freezing are because people can't read directions. That said, this doesn't need dye, it's just another environmental hazard and waste. Compared to pre-mixed off the shelf washing fluid, I did a side by side comparison and it pretty much performed the same when mixed in the recommended ratio. It did not "clean bugs off my windshield" but then again none of the other ones did. I would give 5 stars but the ridiculous amount of blue dye .... -1.

Great stuff to make multiple gallons of windshield washer fluid!

Works great thank you

I guess it cleans my window fine but I have to go through the carwash anyways bc it leaves behind all these blue streaks.

Easy to use and works well. Helps keep the hard water spots off the windshield.

Very good

Works well as far as I am concerned.