I have read that some of you here get really good gas mileage (35+). Most of my driving is done in the city with short stints on the freeway. As such, I only manage to get about 25mpg or so on my 2013 RTL (998). I will admit I drive a little spirited and I am sure that eats up extra gas. I have not tried driving very calmly and keeping the rpm's around 4000 or so to see if it improves.