mothers aluminum polish
 

I finally welded up my fuel tank after 1 1/2 yrs of procrastinating.It was seriously oxidized and I decided to try and shine it up a bit with Mother's polish.I'm very happy with the results.Any crappiness you see is because I screwed up and left some strong acid on it for too long when I was cleaning it up for welding.

The first two are from basically the same angle and in the same lighting conditions.
P.S. forgot to mention that the powerball worked better than I could have asked for too.