After reading so much about clay bars around here I decided I had to try one for myself. I picked up a kit on the way home and decided to tackle my dd. The car came from southern California and spent 3 years in Texas. After a thorough wash and towel I put an hour of elbow grease into the hood. All I can say is WOW! Very happy with the results. If my arms could handle it, I'd take the rest of the week off to clay the rest of the car, my Nova and then then the vette. Looks like I'll be doing plenty of detailing this summer.