And you'd be right. the only difference is that in averaged readouts, the sensor data is logged and is constantly being divided by. the instant readout uses the same sensor data, but is not logged. it's real time, and forgets the last MPG calculation number immediately.I know the ECO model is "specially formulated" for MPG but the "instant" display would be handy for everyone.
How do we go about petitioning GM to add the functionality back into non-ECO model Cruzes? Since ECO has it and the same engine I'd have to think this is a software issue, not hardware... ??