Currently getting about 33mpg in my 2.0 D20E PZEV MTX. I shift to 2nd at about 10-12mph, to 3rd 19-20mph, to 4th 30-32mph, and to 5th when I'm cruising (35 or above only). Windows closed with ventilation at 1 (no AC). Average highway speed 55-65mph.
This is 75% highway driving, BUT about a fourth of the 75% is traffic highway (if you live in the SF Bay Area, you know how slow 880 is during peak hours).
25% is driving in San Francisco. About 25% driving with 3 or more people in the car. 0-60 times almost always under 10 sec.