now that we have discussed karchers to death what about stuff to actually assist in removing the stubborn dirt?? I believe if you use the pressure washer only you tend to sit in one place untill you kinda wear the dirt down or the paint under it, but if you use a good dirt removing stuff the dirt just falls off. has anyone used Muckoff? or anyother good stuff. I got some stuff from team moto the other day that worked well but left a heavy reidue ( can tremember the name right now)