Forgot I have used Optimum`s Power Clean APC in the past, but that was for tires and wheel wheels, not the rims. it`s not exactly inexpensive (AKA, cheap) at $35.00 per gallon, even diluted 3:1, BUT it cleans very well when others seem to fizzle. I think Scottwax had used it to clean some road marking paint from wheel well plastic that tripped my interest to buy it. One thing I do NOT like about OPC was cleaning fabrics or carpet floor mats. Did not like the industrial-odor that lingers for weeks! But then again it was REALLY not designed for that; Optimum has a carpet/fabric-specific clean for that car material, which I have not tried.
Anyway, thanks to ALL you Autopians who have responded about wheel rim cleaners. Your suggestions, opinions, and experiences matter to me and I will take them in advisement when considering my purchase for rim brake-dust cleaner(s).
I find the D143 to clean wheels/tirees much better than OPC, Poorboys APC, 1Z Blitz, and on.