Optimising fuel consumption..Garmin’s take

cf-mdHaving written already on the subject of fuel consumption and even carrying a picture of a friend’s power boat on this blog..I thought I would continue this worrying trend by writing about Garmin’s nice little flow meter – the GFS 10

This not only displays the current fuel level (based on initial reading less flow) but comes up with a single “Economy” reading (in nm/gal) that will have power boat skippers skipping with delight. This help a skipper see his nm/gal consumption automatically therefore taking into account current sea conditions, power applied, and speed over the ground. You can then have a good stab at optimising throttle position to give the best fuel economy. You can also connect up one sensor per engine.cf-sm

So if you have the GMI 10 marine instrument display then you can connect up the GFS 10 fuel sensor using NMEA2000 – other GPSMAP 4xx and 5xx series units require Garmin’s own CANet™ connection.

Specs for the fuel sensor:
Maximum flow rate: up to 50 GPH per engine
Minimum flow rate: 2 GPH
Maximum back pressure: 0.5 PSI at 20 GPH/1.0 PSI at 40 GPH

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