This morning the new spot is dried up. I'm thinking The new (more than a year old now) radiator may have a crack or the bottom hose may be seeping and the fan is driving the moisture over to that side. I expect I may have found out why my MPG's might be low, that carbon filter is getting gas into it somehow. Your idea about pressurizing may be it Geez. I have a lot going on but hopefully if I get my shop floor done in the next week or so I can get to removing the bed and working on an electric fuel pump. Do you guys have a return line on your elect fuel pumps? Maybe that line from the tank to the carbon filter could go into the intake somehow?