not sure whats going on but I've had my '14 SR5 4x4 for over two months now and I'm only getting 16.5 - 16.6 on average. I was expecting to average at least mid 17s but not even close. My driving is a mix of predominantly HWY and some City. My previous vehicle was an '06 Acura MDX and i got 17.8MPG on average with premium gas and 16.3MPG on average with regular gas. Any suggestions?