I have a 2010 Prius and the best I can get is 40 mpg. I live in Houston. I drive friendly and courteously. Did you really get 50 mpg or even 70 + as some one claims? The car runs fine. No problems at all except certain recalls.
Hey I'm just looking in the neighbors window here....since I belong over on the Avalon Hybrid page...
So, how long have you had the car?, do you make short trips?, all center city driving?, how hard do you try? Fifty + mpg is not going to fall into your lap, one must actively "work it" to get extraordinary mileage. #1 make sure you have the tires pumped up.
A lot of good information can be found on this thread:
Forum for people to discuss their mileage and ways to improve it.
On my Avalon I stretch it to the Max, currently on the avg mpg on the dash, I'm averaging 45.3. Last Fall I got up to 46.3 and then down to 45 at the coldest, I move around parking lots in EV, and every chance I get, mix it up with eco and normal. I have the power distribution page up at all times so I can see where my charge level is. I have been known to stop in the middle of the road (when safe) to "force" it into EV when I know it should engage but won't. I do not pay attention to the cars behind me, and many times think to myself, that I am not going to "trash" my mileage so that the other person can get a few moments ahead, when we will catch up to the traffic that's ahead anyway. Anyhow, read up on how to maximize your mileage above, if it is important, it will happen.