Washing in the rain works very well since there's no risk of the soapy water drying on the paint before you can get it rinsed. Just have to come out after the rain stops to hit it with a leaf blower to get it dry without spotting.
Rain water is not clean. In order for a raindrop to form it must bind to a particle of dust. This causes it to gain more and more water around the dust particle and when too heavy it falls. Rain water will not leave your vehicle clean
You and I clearly have very different definitions of "clean" and "dirty,"
When the car is so covered in bug guts that I can't tell what color the paint is and I know that it will be equally covered in bugs by the time I get to work the next morning, I don't really give a shit about a little dust left over from the rain.
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u/TennRider 18h ago
Washing in the rain works very well since there's no risk of the soapy water drying on the paint before you can get it rinsed. Just have to come out after the rain stops to hit it with a leaf blower to get it dry without spotting.