Originally Posted by Speedo66
Very fine steel wool, preferably stainless, with some WD40 as lubricant. You can get the stainless wool at a boat supply shop.
I found #0000 stainless wool at Home Depot, used a bit of WD40 and it worked great. Should have taken some before and after pictures.
The surface rust was on the springs really, one a few of the larger bolts and on the mirrors.
Again, thanks for the tip!