The industry standard for mobile washing is completing the car and removing the dirt so it is clean as promised to the customer. Either way, be sure to be upfront with customers and if you use dry wash, be sure to educate them on the many benefits for positive customer relations. Customers obviously prefer a clean car. The average customer not knowing about dry wash would prefer the hand pressure wash. Therefore caused a situation where the consumer felt mislead, I cannot imagine the dry washer ever returning to that location or attempting to get referrals. So putting up a dry wash car next to a car washed with a pressure washer is not a fair contest in that the customer would prefer the dry washed car and those results better. But for speed and economics we have chosen to stick with the pressure washers.If you did not tell the customer how you were cleaning or washing; then the customer would be more impressed with the results from dry wash, but the dry washed car would more resemble a wash and quick wax. Some would say this is not a standard but rather the minimum required."Lance Winslow" - If you have innovative thoughts and unique perspectives, come think with Lance; www. If do not want to see a mad customer, and you use dry wash; then it is advised to be upfront with a complete explanation. If you use a pressure washer; watch the over spray and keep the dirty water out of the storm drains. Dry Wash'ers might argue that, the pressure washer is a cost too you know? Yes, this is true and for someone who does not have the money to buy a water tank, and home depot pressure washer, a relevant point, but you can buy an Ex-Cell Honda, a good one, Home Depot Pressure Washer for $600. It may have been a simple misunderstanding but the consumer was very upset and the detailer-dry washers lost the account. I know our customers love us and that most of the competition hates us, of those competitors some are using dry wash but most use pressure washers.Now then if you had a customer standing next to you while you washed the car. I have seen people go ballistic when they see some one is washing their car with dry wash and they thought they were using water, these operators obviously did not explain the dry wash benefits very well or at all in advance.So as an informed person my personal preference is that I like both. Think about it. When using a pressure washer we never get these types of situations, unless it is really windy and someone with a clean car gets over-spray.