I know this topic has been beat to death, but I used Collinite fleet Wax and it is looking bad. It appears that black dirt has settled into the wax and it will not wash off. It can only be cleaned by stripping the wax and reapplying. Black streaks down the sides from the windshield look bad and they will not wash off. I am thinking about changing wax brands. Besides that, the Collinite is difficult to apply as well. Anyone else have this issue? Maybe it is environmental in my location.