PLX Kiwi OBDII Scanner and Fuel Saving Device Monitors your driving habits across four parameters to help you save fuel and money "Drive Green" mode shows users how to maximize fuel economy Checks for Diagnostic Trouble Codes (DTCs), clears the codes, and can turn off the "Check Engine" light Displays instant and average MPG values, dollar amount of gas used and saved, and can scan 26 different engine parameters in real time Compatible with all 1996 & newer vehicles including: gas, diesel, ethanol, CNG, E85 & hybrid