[Hoss Ghoul]

No problem. I can't find any wetness in my situation either. I suspect it is the filler neck in my car, and have tried full fills vs 8-10 gallon fills. The lesser fills results in fumes still(especially if the car sits for a few days), but they dissapear much quicker than full fills.

"Topping off" on cross-country drives left me with fumes for about 20-30 miles at speed. Becuase of this I suspect a filler neck problem in my car, you may wish to try a similar situation as well. Nevertheless, I have fumes if I store the car with anything around 10 gallons for a couple days, with the windows sealed.

I have not noticed a significant difference in mileage on 400 after 400 after 400 mile 1 day trips or highway/commute 10 day fillups...so, I don't suspect a serious(if any) leak.

Hopefully that information and some testing and looking around will help you figure out your situation.