Hello, i have just recently purchased a 2002 ford F150 4x4 sport w/ a 4 speed + overdrive manual transmission. it was used, and had 2600 miles on it. I was wondering what the average listed gas milage is for these trucks. i drive to work and back every day, a 60 mile round trip. i drive 70 mph the entire way. i average 10 mpg on the highway and in the city. i have the bed cover on correctly and am not too heavy on the accelerator. i purchased the 4.2 L because i thought that i would get fairly good milage, and from what i have read most people do. as far as i know, everything is stock. at 70Mph, i turn about 2300 Rpms. why is the gas milage so poor and what can i do to fix this problem.