Okay, i usually wash my car in my yard with my microfiber mit, car was, a bucket, a hose and of course wax. Its turns out beautifully and i can run a whit glove across it with nothing coming off. I figured, what the hell, while I'm out I will take it to the car wash. Our car wash doesn't have one of those giant blow dryers at the end, so I grabbed my microfiber cloths to dry it off and as I'm drying I notice a ton of grime and dirt is coming off as well...stuff the car wash didn't get off. Here is the end result of the crap the car wash failed to remove. All surface dirt, dust, and road grime. It has only been a week since i last washed my car. Never going to the car wash again!