Don't want to hijack this thread, but I have polished wheels also, and I've got all this crap stuck to them since the winter...tar and stuff....which does NOT polish out by hand.
Is there anything more abrasive that you guys recommend, or have used yourself, that you know works. I've used the Blue Magic Polish, and it's great for shining up an already healthy looking wheel, but I need to do some serious cleaning before I can worry about putting the final shine to them.
I've thought of going over the wheels with a really fine sandpaper to get all the crap off first, like an 800 grit, then a 1000 grit, then a 2000 grit, then a metal polish. What do you guys think?