I am willing to wait after the 1,000 mile break in recommended by the adminstrator's post. I am currently getting about 35 mpg. No matter how much I baby the throttle on the freeway I can't get a constant reading near 40 mpg. But in Orange County, CA the traffic here is tough. A lot of stop and go, and when you go, you better haul ass or you'll get a honk or middle finger. I would rather see a rating with worse/best case senario. Like, the worst case you'll get 32 mpg and you can max out maybe 52 mpg.