OK, one thing I have never complained about, is fuel mileage on our CX5. Now have 54,000 kms. I don't really keep track of this anymore, but since we were doing a big road trip, I figured it would be interesting to see.
Just completed a 3400 km trip. To break that up, 2700kms was hwy and 700 kms of running around town doing errands.
FWIW, the computer dash readout, I found is almost identical to the old fashion math method. (0.1 diff)
AC on 70% of the time. Most of the time use cruise, even though the mountains. Speeds were set anywhere between 95 - 120 kph. And I use regular 87 fuel.
Best hwy mileage on an 800 km stretch..........6.4L/100.....44mpg (CAN).......36.6 (US)
Overall the whole trip 3400 kms (2110 miles)......7.25L/100.....39mpg (CAN)......32.5 (US)
The last leg of the trip we really didn't want to stop for fuel. Travelled 700 kms to pull into the driveway, and the fuel light came on. When the light comes on, we usually still have an hour of highway driving left over.