Hey everyone, I've had my JX about almost 2 weeks. I have filled once (91 octane) and have about 500 miles on the odometer. I am avg 17.8-18.2 mpg with my driving. Mainly 30 miles a day highway. Is anybody else seeing significantly lower estimated mpg than sticker? I was expecting near 24 mpg. Is this because the car is still being broken in?