Everytime it doesn't look absolutely perfect. Probably 2X a week. After 3 coats of Liquid glass Polish, I'll wash it, dry it with a chamois, then dry it again with a cotton towel, then once more with a lint free drier until it's perfect. Then I foam the tires, buff the wheels, do the windows, and Plexis my headlight assembly, and tailights. I love my Bullitt!!!!!!!!!!No wonder we get so many head turns eh! Screw those Super Sport Z28's and their big block motors, our cars look GOOOOOOOD!!!!