I got the best mileage I've ever seen on a recent road trip out to Idaho and Oregon. Driving mellow, around 65 mph, not a bunch of hills, and I got 24 mpg. I'll say it again, 24 mpg.
I was averaging 21-22 the whole trip. Maybe the fuel in those states burns better than in the People's Republic of California. Less additives maybe?
Now, I love visiting Oregon to mountain bike, but I absolutely hate the state's policy that you can't pump your own fuel. I had heard one theory that it's a way to employ people after they logged the state to death and the logging industry collapsed. Anyway, I don't want some strung out looking crankster touching my truck. When I pull up to a gas station in Oregon, I jump out quickly and at least take my own gas cap off, watch the crankster pump my gas, and then put my own gas cap on and close the hatch. The only station I visited in Oregon that didn't have a scary looking individual wanting the pump my gas for me was a small independent store with one pump and a nice elderly gentleman and his daughter working there. If you're from Oregon and I offended you somehow, get over it, because you know I'm speaking the truth about the gas pumpers in your state. SCARY.