First the driving environement has a lot to do with it. Als attitude. I was an agressive hard driver, but getting the TCH has me more relaxed. What kind of driving do you find yourself doing most of the time. I find hightway or sustained speeds of 45-60 is where this car shines. Frequent stop and go hurts MPG on this car especially if you accelerate hard. Learn to caost more, and also learn to look further ahead to anticipate the traffic so you can coast more. And how many miles on your car, my mileage has been steadily climbing due to 2 factors, first the engine breaking in and then my learning how to get more MPG out of the car. I know there are some that are proabbly driving obsessed with MPG and driving like grandpa on a sunday stroll, I am trying to find the balance of calmer driving with decent MPG while not driving like grandma. I also found the car MPG started to get much better up around 1500+ miles. And while it may not be a huge impact I am a big beleiver in certain brands of gas, I love high quality gas such as Chevron, I have always found my cars seems to give their best with Chevron. Years ago I had an engineer from Toyota and another from Mazda swear by Chevron and their Techron. Maybe it is some bs, but I am exclusively back on Chevron.