First fill up:
456 miles on 9.481 gallons / $2.79 (US), for 48MPG
I kept it below 60mph, shifted to 5th gear at 35mph, turned the engine off at long lights, coasted in neutral downhill.
I filled her with 87 Sunoco at the same pump.
I think 70 MPG is possible at low speeds.
I'm happy with the MPG already!