Ha ha!
My good friend has a 2008 Black FX4. Great little truck. Torquey engine, fair gas milage. He is a teenager so his gas milage suffers a bit, but he has claimed to get an average of 18 or so. I imagine up to 25 on the highway. If you have the funds to do so, I recomend you look at the F150 as the MPG numbers from the V6 Ranger are compairable to the F150 with more power. My suggestion.
Good luck!