As usual, I always wash the rims first before washing the car body. Then, I proceed to wipe dry the car body and finally the rims. I don't know why, my set of clearcoated wheels easily get etched by water spots. This problem doesn't happen on my car paint. I've tried using Scratch-X to remove the waterspot etch mark, but no improvements at all. I wonder could it be etched by the dirty water by the road side when I go over it?