I know we've talked about this some before, but for you guys picking up new units it might come in handy to revisit.
Coming home on Sunday I was trying to make some time and not stop as soon/often as I had been for fuel. I put 5.294 gallons of gas into my SEEG's (5 gallon [smiley=nixweiss.gif]) tank during one stop. The bike actually began to sputter just as I was positioning it in front of the pump. The gauge, however, was still above the "E," about half way between "E" and the first mark. My advice: never let the gauge drop below the first mark (the one that represents 1/12 full). You'll be taking a big gamble that you'll make it to the next station. The gauges on these bikes (take your pick: fuel, air temp, volts, even oil pressure?) are not very accurate.