I really Not sure what type of wire that I'm using it was in the welder when I bought it. For some reason I'm guessing it's .030 but not 100% percent sure. You guys are good My welds were a bit on the cold side looking at the back of the fender there are some areas I didn't get good penetration. Here's the pic of the welder I'm using. It's old but it was in my price range
[img]http://thumb5.webshots.net/t/16/17/6/58/19/2352658190085718485iQEyDx_th.jpg[/img] It does have a tank it's sitting on the floor out of view.