Used it as a waterless wash today on my S3, 1:300 (about 3ish mL of PRW to 1L water). The car had light dust form sitting in the garage for the week and wanted to apply a coat of Polishangel High Gloss Paste Wax. Sprayed the Riseless Wash solution on the car and could see it work on the light dust, wiped it with a plush towel, and used a second microfiber to dry it up. The surface was left without anything and back to initial slickness. Will keep this in the closet as I think it will be useful once the winter comes and can use it as a pre-spray for salt before I do a bucket wash.