When I first picked up Radio Flyer in January, it acheived a pathetic 9mpg. In comparison, my 85 Dodge W350 with 4.56 gearing, 4 inch lift, 33s, and the aerodynamics of a large barn nailed down a consistant 10.
After a tune-up, and some initial carb tuning, I managed to eek out 10mpg my last fill up along with losing the excessive smoke upon startup. She was running extremely rich. Picked up some smoother driveability as well.
After this was some more intensive tuning on the carb along with working out random idle issues due to a vacuum leak, I trusted the mechanicals enough to plink down $600 on a nice set of Kumho Roadventure AT51s in the 235 size a couple weeks ago.
Fast forward to today at the gas pumps. I had logged exactly 150 miles and was watching the counter on the screen add up. I was hoping for a bit better than 10. Maybe 11 mpg.
The pump kicked off at 11.3 gallons. "Hmmm, that can't be right." I depressed the nozzle handle and the pump once again kicked off. One more try confirmed, the tank was full. Out comes my phone so I can do a quick calculation.
13.25mpg! I was floored, but ecstatic.
Jeep on, fellas!