Filled the Allegro up in preparation for my next trip this coming weekend.
It looks like I went 165 miles between "fills", and it took 40 gallons. So about 4 MPG. I did run the generator quite a bit - a bit over 5 hours and it sucks down about a gallon an hour. I also question my last "fill" because I know that when it's full it pukes gas out the top of the tank where it meets the filler tube. The gas station attendant (can't pump my own gas in NJ) insisted it was full but there was no leaks. Tonight it puked fuel out like it should have when it was full.
So, I'm standing by my 5 MPG estimate. And I'm not gentle with the thing. I have my foot in the 4 barrels quite a bit.
The fun part was all of 3 of the gas station attendants (Indian immigrants in this case) took a tour of the thing. The one guy said it was bigger than his flat in India. He was blown away at the fact that I owned the thing and drove it around (he had asked how much it cost me to rent it). So it's big, old and ugly to some, but a palace to others. I feel lucky to have the luxury of owning it...for now. Until whatever breaks next :)