I was getting ready to buy a Garmin gfs 10 fuel flow sensor for my 04 4.3gxi engine but was told that fuel meters are not compatible with fuel systems that use a fuel return. My thought that it would still meter the fuel that flows through the line attached to the meter, but it would read slightly higher than what was actually burned because some fuel would be returned to the tank. Anybody installed a fuel meter on your volvo engine? I'm wanting it to use for fuel efficiency to find out my best cruise speeds.
Thanks
Thanks