Mileage will vary with many factors including 4X4 vs 2X4, auto vs manual, ECT vs Norm for auto tranny, large tires vs stock tires, highway vs city, heavy foot vs light foot.
My 4X4 V6 with auto gets 19 MPG highway when I use NORM and 17 when I use ECT. I run the A/C all the time. I'm a little...