if you have a Dollar General store near you, they should carry a
cleaning product called "Mean Green". You can buy a spray bottle as
well as gallon jug refills. I love the stuff- use it on a variety of
things. It's a good engine degreaser, took pine sap off the roof of
our camper, and also works great to clean both of my vehicles aluminum
rims. The list goes on. Probably cheaper than armor-all too- i think
the gallon jug refills are $5.00
found a web site for Mean Green after posting my first reply...
Automotive Chrome Wire Wheels: Use full strength or 1-1. Spray Mean
Green generously onto each wheel and allow to penetrate. Very effective
on brake dust. Rinse well with strong stream of water.