what OTC aluminum polish is good?

Indeed, but its one of the best and easiest to use metal polishes I've tried. I havent tried any of their other products, as I dont have much of a need for them, but I love Bombs Away. I got my fenders to look like that with #0000 steel wool and just a few drops of polish. The area turns black first, then it begins to flash, then a buff off with an old Sams Club MF. I toss the MF's afterwards as they are pretty much black when I'm done. I did the metal roof of the trailer about 3 weeks ago, and it came out like a buffed out AirStream. I used the PC on 4 with a white pad for the roof though. I dont want to hijack this thread, but if anyone else is interested I can start another one with some 50/50 pics.