Any Lowrance display like a LCX-38, LMF400 or 525c can display all the fuel management functions as long as there is an EP-60 (formerly the EP-10) sensor on the NMEA2000 network. If there is also a gps antenna on the network, such as the LGC-3000 that is included with most Lowrance chartplotters, then the display will show MPG and range. You can hook your engine directly to the nmea2000 network using a Lowrance EP-20 engine interface device. This is used in lieu of the EP-60 sensor. The EP-20 will show fuel flow like the EP-60, and will also show a bunch of other things like engine trim or rpm. Not all outboards are nmea2000 compliant so you should check with your manufacturer or call me
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