18MPG around town on 03 5.4l

[Kryo-Genik]

My bone stock 03 EB shows like 9 and change mpg. It's weird as my lightning with a fully built motor and shit gets similar mpg. So I'm wondering if something is wrong with my EB expy as I figured mpg would be better than my Lightning

 

[1955moose]

03 Expedition mileage sticker for the 4 wheel drive versions are 12 city, 16 highway. The smaller 4.6 gets 17 highway, city same. If yours is 2 wheel drive the 4.6 jumps to 13 and 18. 9 and change is 3 mpg down. You might want to run, or have someone run fuel trim readings and if you haven't done it, pump up tires to proper spec, do a full tune up on engine.

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[johnboneske]

I get 11.9 city, 12.8 combo and 15.2 highway on average with my 2003 5.4 4x4 with 3.73 gears. I typically run around 72 in a 65 MPH zone, 74 to 76 in a 70 zone. I can't imagine getting 16 or better, would be awesome! Hell, my wife's 2006 2wd Trailblazer EXT 4.2 only gets about 18.2 on the highway. But then again i don't drive under 70 on the interstate.

 

[1955moose]

John your as close to sticker as anybody. If your anywhere near their sticker readings your doing ok. Your almost spot on. A little less speed and you'd be above sticker.

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