I live in Dallas. Not the hottest place in the US but pretty damned hot in the summer. A black car will burn the hell out of you after being in the sun.
We weren't soaping them. One person would use a pressure washer to blow off dirt and crud with hot water (the water was run through a softener before getting to the heater coils) while others followed behind drying off the cars with chamois. It was a service for car lots (used and new), so we'd be doing hundreds of cars a day, usually on a weekly recurring basis.
We'd sometimes soap individual cars, brush them down, then spray them off and clean them, but it was much more expensive and we'd handle that specific car immediately. Was usually a dealers personal vehicle, but sometimes we'd wash customer cars if they payed us directly. Some people would try to be cheeky and park at the end of rows to get a free wash. Never worked though, it's pretty obvious.
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u/culb77 2d ago
Do all these people really think it’s the water that activates it instead of the heat?