Ok imagine the dirtiest, oiliest, nastiest cases. Now multiply that by about 100 and you've got mine. I used a whole can of engine degreaser, 1/2 a bottle of simple green, diesel, and a little bit of parts washer fluid on this yesterday, scrubbing it about 10 times and it's still got this layer of crap on it. Is there anything I can put on a die grinder or dremel that will take this off while not f'ing up the metal by scratching it bad. This is the only dirty part left on my bike while I'm rebuilding it and it looks terrible.