According to a website I was looking at :
For a 1999 Ford Expedition with the 4.6 litre V8 engine :
( two wheel drive , 12 city and 17 highway )
( 4x4 , 11 city and 15 highway )
* miles per U.S. gallon
13 MPG
The EPA mileage estimate for the 2005 Ford Expedition is 13 mpg in the city, 18 mpg on the highway.
The EPA mileage estimate for the 2002 Ford Expedition is 14 mpg in the city, 19 mpg on the highway.
The EPA mileage estimate for the 2008 Ford Expedition is 12 mpg in the city, 18 mpg on the highway.
The EPA mileage estimate for the 2011 Ford Expedition is 14 mpg in the city, 20 mpg on the highway.
The EPA mileage estimate for the 2014 Ford Expedition is 14 mpg in the city, 20 mpg on the highway.
The EPA mileage estimate for the 2007 Ford Expedition is 12 mpg in the city, 18 mpg on the highway.
The EPA mileage estimate for the 2009 Ford Expedition is 14 mpg in the city, 20 mpg on the highway.
The EPA mileage estimate for the 2001 Ford Expedition is 14 mpg in the city, 19 mpg on the highway.
The EPA mileage estimate for the 2013 Ford Expedition is 14 mpg in the city, 20 mpg on the highway.
The EPA mileage estimate for the 2010 Ford Expedition is 14 mpg in the city, 20 mpg on the highway.
The EPA mileage estimate for the 2003 Ford Expedition is 13 mpg in the city, 18 mpg on the highway.