I got started in car detailing about a year ago. I've done lots of basic detailing maintenance, but only a couple of full details from decontamination to polishing. I've used Iron-X on two vehicles so far. One vehicle was a 1999 Chevy truck that has been parked outside for a few years, and a 2011 BMW Z4 which is garage kept. Both are in the Oklahoma area. When using Iron-X on both of them, neither of them 'bled' at all. Apparently there just isn't any fallout on them. Even when I do the wheels, there is basically nothing there (except for the bleeding from the rotors). I hear about dramatic results in so many threads, I'm just wondering if iron fallout is just more common in other regions of the US?