Look at the instant fuel consumption meter more, and watch the right foot. For everyone's information, it takes huge amounts of fuel to accelerate at low speeds, esp. from a dead stop.

Once from a dead stop, I pushed the throttle abruptly to 50%. It took 83.1 l/100km that first couple seconds to get moving...........that's about 2.9 instant mpg. And I have a X3 2.5i. And it gets even worse when the engine is cold. Routinely, cold engine light accel nets about 2.4mpg.

In addition, remember you are getting 0 mpg when you're stopped. The computer takes that into account, so if you're stopped for long periods of time, you can get low readouts.

The tips above are valid in lowering fuel consumption. Check tire pressures (when cold), engine air filter, reducing weight in the car (take out the dead bodies in the trunk).

For the record, I routinely get 19.5-21 miles to the gallon. All time high was 27mpg average on a highway trip, all time low was 9.8mpg while doing all city driving in Baltimore. Man that was stressful.

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2014 Mazda 3 GT: Ø Consumption: (click for details)