Wanted to update my '07ST, ~3400 miles . I took a trip From Texas to Illinois recently and was very surprised. Ah, I've also been keeping track of my mileage since day 1.
1st fill ever, 2nd fill, etc... 23.5 , 25.7 , 31.05 , 30.2 , 27 ,
!! (first tank on trip, filled w/ Chevron reg, nice wind at my back. Also ~10 miles after first oil/filter change, 5w20 Motorcraft, Bosch Filter @ 1763 miles) ,
31.3 (head to side wind, storm in Ok plus 75mph on turnpike) ,
32.7 (what I believe to be avg hwy, nice day @ 67-72mph, light headwind in Illinois after St. Louis) ,
26.59 (last 100miles of the journey then all city) ,
27.79 (70 mile trip but more fun than usual, odd)
Averaging 29.1 mpg in about 65% highway or 45 plus mph. Max on highway is 75 ( Turnpike in Ok or by accident), mostly at 67-72. Shift at around 3k and don't accelarate fast, usually slower than everyone else. I've only hit 5k rpms 3 times and over once to 5250k. You don't have to work too hard to get good mileage (imo), just don't drive and brake like you're 16 w/ your first car and you're gtg. I'm pretty satisfied atm
and almost done with my break-in routine.