My lifetime average is 57% highway / 43% city and I'm sitting at 32.3 MPG over 17,000 miles.
I've discovered that this thing loves all-highway on Premium (Shell 93 V-Power) at cruise of 65 MPH and below. I've pulled tanks (480+ miles) at 42 and 45 MPG in those conditions.
2012 Focus Ti Hatch | Ingot Silver | 401A, Nav, Winter Pkg, Moon Roof, Parking Tech. Pkg
Build Date: 12/2/2011 | New APIM: 4/4/2012
MFT: Factory v2.11, 3/14/12 Web -> v3.0.2, 9/24/12 Web -> v3.2.2, 1/24/13 Web -> v3.5.1, 8/13/13 Web -> v3.6