Yep I finally went and did it. I weathered a locomotive. It is an old Tyco Santa Fe F7A that I had laying around doing nothing. So I figured what the heck and used it for practice. First thing I did was use a wash made of Folk Art Licorice and blue windshield wiper fluid at 1:1 mix on all the fan grills and side grills to give them depth. Next I dry brushed the Folk Art Licorice onto the roof to give it that well used snotty look. Then I dry brushed Folk Art Charcoal Gray for some grime around the trucks and few other places. Then I gave it a wash with Charcoal Gray 2 parts, Dark Gray 1 part, blue windshield washer fluid 5 parts. Lastly I sealed it with a matte finish. I did not do anything with the trucks. I just wanted to see how the body would come out. So here is the first attempt. As I previously stated this was a practice run. I am not totally happy with the way it came out. It did, however, come out better than I thought it would.