“When the radiator builds up a whole lot of heat, it’ll circulate some of the antifreeze out into a tank on a newer car ya know, and then when it cools down it kinda circulates back in. So it’s called an overflow tank. But I mean these radiators don't really have an overflow tank, and you don't want some big plastic thing hanging out there, so that’s what that is” said Steve Welch of New Albany when describing the purpose of the Pabst Blue Ribbon Beer can on his 1930 Model A Ford. “I found that a long time ago, put that on there for my dad who passed away when I was young.”