I know there was an old post about the 05-06 belly pan dippers but could not find it. I just changed the oil in my 06 GT and the dippers looked really bad so i thought i would try to clean them. Tried a couple of spray cleaners but didn't help much. I had an old standby can of "GOOF OFF", I thought it might damage them but gave it a try. No damage and they cleaned up really nice and look new. No one can see them but were just nasty. Give it try next time you have it off.