Wonder wheels does the trick -

Wonder wheels ruined my alloys. Be warned if you have anything but un-blemished immaculate wheels.

Wonder wheels does the trick -

I use a multipurpse clener from neilsenns you dilute for what you use it for

supposed to be for engines and interiors

use it almost neat

shifts most of the dirt and isnt acidic

once every couple of weeks i use tesco's alloy wheel cleaner which is acidic but shifts all the really stubbon crap

and it only costs

Try G101 !!! Good stuff