Model: 000-11517-001 Displays current fuel rate or fuel flow Tracks fuel used, trip fuel used and seasonal fuel used For gasoline engines only. Does not work with diesel engines or any fuel system with a return fuel line or sump Calculates fuel economy with networked speed source (GPS or Speed Sensor) The Fuel Flow Sensor tracks engine fuel flow, fuel used, trip fuel used and seasonal fuel used ? sharing the information with any compatible display unit connected to the NMEA 2000A(R) network. With a speed source in the network, the Fuel Flow Sensor can also calculate fuel economy.