I've used steel wool, and it seemed to work okay. Don't really remember what size I used, but I do remember it was a fine grade. I've also used rubbing compound, which also helped. It does seem that no matter what I used, I have to repeat the treatment in a few months.
95 Contour Zetec, ATX (wrecked, sitting in the barn)
95 Mystique Zetec, MTX
2000 Taurus SEL 3.0L Duratec
1994 Crown Victoria LX 4.6 V8
1993 Chevy Silverado 4.3 V6
| 
