I believe you can use a wheel cleaner from Eagle 1 IIRC?
It is a mag wheel cleaner,works on oxidation,pitting etc.
It causes a chemicle reaction & you do not leave it on too long.
It will darken the aluminum if you leave it on too long.
I used this mag cleaner on my Webber DCOE carbs & it made them look much better than before.
MBHD
