What is your fuel economy (average, how many miles on a tank, etc)... I know that there are a TON of F/E threads but I am looking for this specific truck. 2002-2003 FX4 preferrably supercrew but I guess that all iterations of it will be ok.

Also, let me know if you are stock or what you have done to it. Most importantly, what fuel grade you use.

 

I get somewhere between 13 and 14 mpg average which is about half highway and half city driving. 2003 SuperCrew Fx4 with a MAC intake, true dual straight pipe exhaust with an x-pipe, body lift, 315 Hankook MT's and an Edge programmer. I use the tow setting on the Edge and i use regular 87 octane gas.

 

Oh yea, I usually get between 290 and 310 miles on a tank of gas. The most i ever put in my truck is about 22 gallons

 

I get about 16 mpg doing an average 65 and i think the most I've put on a tank is 350. In town its more like 10-12 mpg sometimes lower when i use my autostart and 4wd alot in the cold and snowy months.

 

Been getting 13 around town. 17 highway.

2003 FX4 Extended cab on Yoko AT's. No other mods from stock.

 

2003 FX4 SuperCrew on Yoko AT's 285/70/17.
About 16 mpg

 

2002 Supercrew 4x4 5.4L with Goodrich All Terrain T/A 285/70R17's. In the summer if I'm easy on it I might get 14 mpg with a mix of city and highway driving. In the winter it's more like ten.

 

Here's mine

 

Whew... ok so I just emptied my first tank since taking ownership and I got 291 miles before the "Low Fuel" light came on and I put 21 gallons in it.

BARF... 13.1mpg mixed highway/city. My 2005 5.4L 2wd averaged about 16.1-16.3mpg.

 

my 2003 5.4l fx4 supercrew 3.73 gears 37in bfg a/t's 55k miles, airraid cai, cheap exhaust, superchips performance 93 tune, i use highest octaine i can get mostly 93, i get on average 10-8 mixed city and highway but i do have a heavy foot and like to wind her up and blow out that slow smoke haha lol i would love to get 14mpg i would pee my pants lol