My 172 alloys are caked in brake dust (a moment of weakness in that I didnt have time to keep cleaning them over the winter) which is proving impossible to remove. Ive tried a couple of so-called miracle cleaners from Halfords but the baked on brake dust wont budge. Ive also tried the jetwash, metal cleaners, etc. - and even a very mild wire wool! But to no avail.
What would you recommend to shift it?
Thanks!