I get 8 to 10 mpg pulling my camper -- the reason I own an Expedition in the first place. But the size and comfort is growing on me and I doubt I'll ever be without one, even if I lack a camper in the future.

-- Chuck

 

My 01 Navigator 4x2 could get 20mpg on the highway if I drove it right. I was happy with that. My 08 Nav 4x4 L model gets about 17mph highway. I got 12.9 pulling my enclosed 12ft trailer at 70-75mph. Gets about 14 in town.

Kelly

 

2010 regular length 4x2 16-17 city (have around 2000 miles on it).

 

Apparently 4X2 gets a bit better mileage, but 4X4 a must in these parts.

 

I can detect a change in engine "feel" between 4x2 and 4x4 auto. Not sure it has a measurable effect on fuel mileage, though. I run in 4x2 99% of the time. 4x4 auto in the rain or snow.

-- Chuck

 

I have a 2008 Expedition EL 4x4 with 54,700 miles on it. I track all of the mileage for the vehicle (number cruncher by trade). The vehicle has the stock Pirelli tires and has had regular maintenance done since purchase. Combined city/highway mpg is 12.99. I have gotten as high as 18.25 mpg for a tank of gas on a trip running 70+.

A lot of my mileage is in town, living approximately 4 miles from work, and a lot of arround town travel hits the mpg pretty hard. There is also some towing of a 5,000 lb boat factored into the overall mpg. When towing, mileage drops to 9 - 11 mpg. On the other hand, I have gotten around 20 mpg for an extended highway run at around 60-65 mph (no boat attached).

I also compare the computer's mpg to the calculated mpg based on fillup data and it is .5 to 1 mpg high generally.