red2003xlt
Member
- Joined
- Jun 3, 2008
- Messages
- 39
- Reaction score
- 0
- Points
- 6
- Location
- TLH, FL
- Vehicle Year
- 2003
- Make / Model
- Ford
- Transmission
- Automatic
I have the same truck a 2003 model. Do a complete tuneup and check if your fuel injectors aren't leaking. I get 24 on the hwy with cruise control set at 70.2006 3.0 2WD auto, standard cab with long box. <65 MPH highway with an empty bed the best I ever did was 21 MPG. Mileage difference between 3.0 and 4.0L is quite thin.
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