Fuel-saving management system

A fuel-saving management system comprising, on a motor vehicle:

• information detectors for detecting, respectively, vehicle speed, engine speed, and a fuel flow rate as information on a running state of the vehicle;
• an information-processing device for processing the information detected by the information detectors, the information-processing device also generating a warning to a driver when the vehicle speed, the engine speed and the fuel flow rate satisfy required warning conditions;
• and
• an information storage device storing occurrence values;
• wherein the required warning conditions are satisfied by
• the detected engine speed exceeding a previously-set engine speed warning value,
• the detected vehicle speed not exceeding a previously set vehicle speed value, and
• the detected fuel flow rate exceeding a previously set fuel flow rate value;
• wherein the information-processing device stores an occurrence value into the information storage device only if the required warning conditions are satisfied for a duration that exceeds a previously set duration value.