Took a trip towing an 8x10 rounded front enclosed trailer load of car parts to and from Oklahoma City. Spent 4 days in OK City.
Went outbound through Utah, Wyoming, Nebraska, Kansas. Came back via Texas, New Mexico, Colorado and Utah. Lots of desert, corn and grain fields, windmills and oil wells, plus a couple of the smelliest cattle yards I've ever smelled. Most everwhere was dry except in the mountains. Still snow on mountains many places in the middle of July!
MPG ran anywhere from a dismal 9 MPG up to a high of about 20 MPG. Would've been worse without the electric fan mod.
What surprised me is where the worst and best MPG happened. Most of the worst was on the middle of the country flatlands. Gasoline out there is crap, even the 92 octane. I suspect some of it has a bit more than 10% ethanol. Got the best efficiency crossing the continental divide and other higher elevation areas.
Most of the time I ran 85 or 87 octane. Never pinged or knocked. On the way out, just before leaving Idaho, the battery quit. Had to run all the way to Brigham City on the alternator, stopped in Tremonton, UT but that town totally shuts down on Saturdays.
This was *not* the tank that gave the worst MPG. IIRC the worst was from some petrol in Kansas, from an outfit that's big back there, claimed not to have alcohol in their gas.
Ran the AC almost all the way, except for when the battery quit and some in the mountains.
Overall I'm happy with my homebrew electric fan mod.
