I'd been reading great things about 303 on here so a few weeks ago I bought some. Last Saturday I washed the cars. I thought I'd use it on the unpainted plastic parts of my wife's Saturn Vue. After doing it, it looked great. Two days later she drove about a mile on a dirt road. Now it looks terrible. Every part that got “soaked” with 303 now has a layer of dust stuck on it. Even the spots on the paint that got wet with 303 are dusty. The parts that got a lighter coat of 303 don't have dust. It can't be blamed on other products because I had not applied anything on the plastic for a very long time. Its possible I put something on it 3 or 4 years ago (I don't remember). But its been at least that long because I haven't had any plastic cleaner around for years. So whats the deal? Did someone refill the bottle with Amorall, or is this stuff the automotive equivalent of heroin (requiring a daily fix)? I picked up some more 303 last weekend on a going out of business sale at another store. I'll redo test sections of the car with it and see if has the same problem.