I have 255 on the front and 265 on the back and most of my driving is highway

 

Full bolt ons and a light foot

 

Keeping up with basic maintenance like oil changes every time it needs it helps

 

Well i take it easy most of the time, but spend a lot of time offroad which doesnt help...

 

In the winter time I usually get 280-290 to a tank... Summer time I get 320 before the light comes on.

2002 4.6L Supercrew 4x4

 

different years and cab sizes come with different size tanks

 

ive got a 1997 5.4 and Im currently running my first full tank through it and i just got 185 on half a tank. Not sure what size tank cause i filled up when it has a little under half or just above it.

 

I get 250 from full to half and 450-500 on a whole tank. but since it costs $108 to fill up the whole thing I only do half a tank at a time. If I drive all highway I can get up to 600 until I hit E (36 gallon tank)

 

holy crap is that a stock tank???

 

For his year truck yes. The 04-08 is different than 97-03.