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In our business we use a waterless wash product extensivly. Not only does it give a superior finish over the rinseless washes, but it's a true 0 run off product. As far as speed both are pretty equal. The ECO touch product is quite go0d as far as waterless wash products go, I would reccomend it. And for those afraid of scratching I invite you to come to Quebec, my car has 70,000 kms on it and has never been washed with water, nor polished or waxed, and provides a great shine with very little surface maring(any marring is caused by snow removal, not washing). One thing you can do to test a product is get a piece of plexiglass dirty, then wash 1/2 in the method you currently use, and the other half with your waterless product of choice, plastic will show any scratch created.