Codger2: "Although the FloScan can be very accurate, calibrating it is not as simple as is implied here. I've had two FloScans in the past & getting them to agree with what I took on at the pump, vs, what they said I burned, was no easy matter. I never did get them to agree with what I had actually burned. I have no ax to grind with the FloScan people.....I would prefer a fuel monitor that is much easier to calibrate."
I also struggled with the calibration issue - they recommend 3 tank refills in order to make the system accurate. Didn't install for 4 years after purchase, so my fault to start with.
After install, couldn't get the system to work. Had to buy a new meter. After 2 refills, the other meter quit. After re-install, got through 3 refills and found the calibration settings were not sufficient (they only adjust to 8%?). Took the meters/gauge into FloScan, ended up buying a new meter. After 3 more refills, was able to get the system calibrated and it was very accurate for about 18 months.
Then it stopped, and was advised that a meter needed to be replaced, and that it would not work with the other meter, so would need two new meters.
So - After 10 years, $1300 and a large number of hours, I gave up on it. However, I was able to record very accurate consumption rates at varying speeds that serve me well today. 6BT5.9 210hp.