I have not. When I can wash my car it's not so bad. Here's the deal though. I live in georgia. We get that yellow pollen crap in the spring time. It effects all cars obviously but on black it's the worst. On top of that there have been constant water bans so I haven't been legally able to wash my car for over 3 months. I can't afford to go to the car wash every week. When it's clean it looks great though. I figure yellow pollen will blend in better with sublime lol