Last summer it was about 20-22MPG and 24-25 on the highway. The only change I can say I have made is I'm easy on accelerating and I coast in the highest gear without struggling, or just coast downhills in neutral. I guess engine breakin may be a factor too.
Also, my mileage is slightly off due to larger tires, 31inch versus the stock 28inch. So in fact, I'm getting slightly better mileage than what my speedo tells me.