I have the luxury of working for a water treatment company who specializes in deionization/RO/and softners. I have been using di to rinse my car whenever I wash it. The point. The treatment(deionization) removes all impurities from the water. So, no water spots, use about half the soap, no furious wiping post wash the car. If any of you can gain access to this it saves me a ton of time.

 

I wishI was able to get access to a significant amount of Deionized water. I've thought about that for awhile as a way to not have to dry so thouroughly.