[GlynMeek]

Let me speculate here a little, Steve as I don't own a Backdraft. Even though you don't 'top off the tank' and stop at the first click off, you have probably still filled the gas so much that there is a fair amount actually in the rubber hose between the filler cap and the tank itself (at least, that is certainly the way it is on a Lonestar, with about a 2 ft rubber hose from the cap to the top of the tank!!!). Driving 20 miles or so uses enough gas so that there is none in the hose...hence no problem!

There is more than likely a small leak somewhere around where your rubber connecting hose connects to the gas tank itself and this is most likely where the gas leakage occurs and generates the smell...couple of suggestions

1) Check out how much hose you have to see if I am correct, and then :

a) Check the condition of the hose and replace if necessary
b) Check the connection at the tank

2) Don't fill it up ! I am not being facetious here, as I have ALWAYS worried about this same occurrence, and have never topped mine off even to 'the first click'

Hope this helps point some things to look at

regards and let us know what you find

Glyn