In the city which are usually very short trips of less than 7 miles, I get 17 mpg. On the freeway drivnig around 80mph, I get 23 mpg.

 

I have been averaging 24.3 mpg in a mix of 50% highway & 50% streets. I just returned to Houston driving straight from Jacksonville, FL on I-10 under perfect driiving conditions... no rain and light traffic and I used the cruise most of the time set at 75 MPH. The average for this total trip was amazing 29mpg. I am pleasantly schocked and surprised.