Fuel use efficiency system for a vehicle for assisting the driver to improve fuel economy

A fuel efficiency indicator for a vehicle, comprising:

• an output device;
• and
• an instrumentation control for receiving vehicle performance parameters monitored during operation of the vehicle, for detecting from the vehicle performance data whether a condition exists in which the vehicle is consuming excess fuel during operation of the vehicle, and for controlling the output device to indicate to the driver that excess fuel is being consumed, including indicating during operation of the vehicle a quantity of fuel consumed due to the detected condition.

A fuel efficiency indicator for a vehicle, comprising:

• a display device;
• and
• an instrumentation control unit in communication with the display device, the instrumentation control unit operable to receive vehicle performance parameters, operable to detect from the vehicle performance data whether a condition exists in which the vehicle is consuming excess fuel, and operable to control the output device to indicate to the driver that excess fuel is being consumed in response to detecting the condition, to indicate a message indicating a driver action to reduce excess fuel consumption due to the detected condition, and to display a measure of excess fuel consumed due to the detected action.