I can't imagine that iron-x would be much different than Sonax. The later I tried on my wheels and the previous only on the body paint. They both have the same active ingredient that turns dirt/iron purple. They both stink (as in smells). But I find on the wheels no matter what spray or formula I use, I have to agitate things with a brush. There is no spray and done. I am going to try the Auto Fanatic foaming solution. That is coming this week. It seems different than all the other solutions.
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