I'm only 400 miles into my new Highlander Hybrid, but so far have only been able to average 25 MPG, even in econ mode.

Granted, I live at 600 ft. elevation and commute to 50 ft. elevation over approximately 10 miles (with a lot of volatility (read: hills) in between), but I'm pretty seasoned with getting the most out of our mileage (2-year Prius owner).

I'm hoping that my mileage increases as I get through a few tanks of gas. Which, in the medium-cold environment I live, recently switched to a winter formula that always causes a lag on mileage over the colder months.

I guess I'm just hit the "Whoa, wait a minute" Stage, as any new Hybrid Owner does. I paid a pretty big premium trading our 2-year old 4Runner in to upgrade to something a bit more eco-friendly. I sure hope i can achieve better than 15-20% increase in gas mileage.

-Daroon