Around town if you are EASY on the throttle the V8 will get around 15mpg (I've seen as low as 12.5mpg with a heavy foot and -30*f for a week). Highway has always been 19+mpg with my 4.6L mountaineer w/3.73 gears, even seen a 20.5mpg tank with 3 people and 300# of stuff in the back with the cruise set at 75mph. A relative has a 4.0L explorer and when we've gone on trips together both our rigs are with in 1mpg either way (more often then not I get better mileage)