Easy on the abrasives
Scotchbrite is color coded, the harder grades (like green) might damage anodizing as well as removing dirt. I'd stick to a non-abrasive cleaner and a "teflon safe" pad first. If that doesn't get the dirt, the anodizing may be gone (from prior harsh cleaning?) and anything else you do to polish it, won't keep it shiny for long.If that's the case the options are re-anodizing (if they are short enough and there's a local shop) or coating, i.e. with Imron or Awlgrip. Or, just clean and wax it and turn your head.<G>