Abstract: A control system for a mobile excavation machine is disclosed. The control system may include a ground engaging work tool, a sensor and a controller. The sensor may be configured to sense a parameter indicative of a current operating condition of the mobile excavation machine and to generate a signal in response thereto. The controller may be in communication with the sensor and configured to receive the signal and calculate a current efficiency value based on the received signals. The controller may be further configured to associate the current efficiency value with a current operating mode of the machine and categorize and store the current efficiency value based on the current operating mode.