Best: 20.6 mpg cruising at 75 mph in the homeland of ND
Worst: 12.1 mpg with alot of 4X4 when we got hammered by 3 ft of snow in Denver

'02 FX4 Scab all stock 5.4L auto 3.55 gears
the good thing we have over those little hybrids is how much of a difference 2-3 mpg makes for us and how much more excited you can get about it.

 

I've been all full of myself over picking up 0.5 mpg by installing this grille blockoff that I made:

 

Ive got a 99 F150 2wd 4.6L with a 3 inch lift and 285/75/16s and i get 11.5 around town. But i do have a heavy right foot. haha.

 

I'm currently getting 17 mpg. Thats city/highway(70). Note thats with a Volant CAI & Edge Evo on level 1.
Computed the old-fashioned way: pencil & paper

 

on my old 2002 5.4 - excel spreadsheet, got evey fill up i ever did, average is 13.6, best being 18.7, worst being 10.4

on the new (to me) 04, my aveage is 13.2, only filled it up 5 times though, alot of snow right now so its been in 4x4 alot

 

I've had my 06 scab 8'bed w/5.4 and 4.10 rearend for about a month now, been getting 14-15 mpg. Thinking i might get better milage if I went with bigger tire to go with that 4.10 gear

 

2006 supercrew FX4 4x4 15.4 miles per gallon

 

05 Screw. Intake/exhaust/edge lvl 3

In town 10-13
Highway: 17.7 once usually 15/16

But I have a really heavy foot. So around town I burn gas.. On the highway I try to do no less then 85.

 

max 19mpg (dirtbike in back, drafting a greyhound bus doin 65-70mph)
min 8mpg (4500# trailer)

avg city 12.5
avg hwy 15

4.88 gears 35" tires...

 

2006 5.4 best 16.7L/100kms worse 19.7/100kms..... no clue how to convert

 

Winter: 12 to 14 in town, 15 to 16 highway
Summer: 14 to 16 in town, 17 to 18 highway
Towing boat year round: 12
Engine: 5.4L

 

just filled my 02 4x4 w/ the 5.4 up for the first time and I got 12.9 while driving mostly city. We did have some snow though and had to use the 4wd.

 

07 F150 4 x 4, 3.73 gears with 1,700 miles on it.

Average 12.79 city

Best 15.25 combo of city/hwy