Amtrak have made pretty heavy use of bare stainless, no? Amfleet, Superliner, Viewliner, etc. I don't know how frequently they'd have been washed, though. Prob

Amtrak have made pretty heavy use of bare stainless, no? Amfleet, Superliner, Viewliner, etc. I don't know how frequently they'd have been washed, though. Probably a lot more often than the average truck.