Can't get rims clean

[John Galt]

I've been working on cleaning the rims on my 01 X5 and have made great progress but don't know what to do next. If you look at the pictures below, I still have small black specs and some brown streaks. I've been usings Meguiars Hot Rims All Wheel Cleaner with a good stiff brush, which has worked admirably well so far, but can't get at the above problems. I've also tried some detailing clay.

I am tempted to use a green scrub pad, which I am sure would take care of the stubborn black dots, but I don't want to scratch the rims.


Also, if you look at the third pic, there is a scratch or something on the wheel spoke. Is it a scratch or something I can buff out?


Any suggestions?