Review on Rain X 620034 6PK Spot Free Wash by Benjie Swindler

Had really high hopes for this product as the wiper blades and glassware work great. Unfortunately, my black Mustang did not turn out as promised. Followed the directions to the letter but ended up with stains and streaks everywhere. I don't have hard water so that's not the problem. Unfortunately I waited too long to return it. Back to hand drying! Update: I wrote to Rainx and got pretty much the same response as others regarding car wax. But that excuse really doesn't make sense. There were smudges and streaks on my mirror, windows and even my headlights. I think they should change their advertising as the car wash just doesn't do what they say it does.