Gonzo42:
My fuel gauge seemed to move from the last two bars to none rather quick and I stopped and bought fuel when I did not need or want to. After reading the manual I found out that after all bars are gone and the "0" is flashing I still have 6 gallons left. I have tested the gauge several times and it is very accurate. So with 6 gallons left you can travel at least 75 miles before you need to buy more fuel. My fuel bars are gone right around 320 miles of travel and I know I could go to 400 miles before fueling up, but then the stress of running out takes over. Hope you enjoy your MH as much as we do ours - Dale