I wonder if liquid jet dry we use in our dishwasher will prevent water spots if it is added to the bucket when washing. It works on dishes? Why would it not work on a car finish????
Jet Dry is a surfactant. Surfactants lower the surface tension of liquids or between a liquid and solid. Surfactants may be used as a detergent, a wetting agent, or dispersant, among other things. Feel free to add this to your book of worthless knowledge.
Microfiber cloths and detail spray for the most part work for me, with an occasional hand wash.