There continues to be some confusion among the pilots about fueling in the G1000.  The most important concept to remember is the payload is reduced in the G1000 and to keep the G1000 mission ready, we keep the aircraft under filled, with fuel, to allow for a full crew during an actual mission.  The wing has established that filling the G1000 to the bottom of the filler necks (tabs) is the optimum place to keep the fuel level and keep the aircraft mission ready.   

In order to accomplish this, the pilot must stay with the aircraft during fueling to make sure the lineman fills completely to the bottom of the filler neck but doesn't go over that point.  This of course would be in a perfect world which doesn't always happen for one reason or another but we must all do our best to stay with the aircraft and make sure the aircraft is refueled correctly at the end of each flight. 

The wing intends that each pilot pay for the full amount of fuel used during their flight even though they may not have put that much fuel back into the aircraft.   To be fair, the wing doesn't intend for a pilot to pay for fuel he didn't use just to bring the fuel load back to the correct level.  However, on the other hand, we do expect each pilot to pay for ALL the fuel they've used during their flight even though they didn't actually put that much fuel back into the aircraft after their flight.  Does this make sense? 

The G1000 "Fuel Quantity Used Function" is quite accurate and a way to tell how many gallons have actually been used during the flight (note*).  It would be rare, in the G1000, that a pilot didn't know how much fuel he actually used and how many Gallons he should be paying for at the end of each flight.  For this function to work properly, the pilot must reset the "Fuel Quantity Used Function" at the beginning of each flight (note*).  The amount of fuel put back into the aircraft after each flight could be more or it could be less than the actual amount of fuel used during the flight depending upon where the fuel was in relation to the filler neck at the beginning of their flight.  

Here's a simple guideline in priority:

1.) Make sure the aircraft is always fueled to the bottom of the filler necks (tabs) before each flight.

2.) Reset the "Fuel Quantity Used Function" at the beginning of each flight (note*).

3.) Stay with the aircraft and monitor lineman refueling to the bottom of the filler necks after each flight. 4.) Pay for ALL fuel actually used by using actual fuel receipt(s) but only if they are accurate.

5.) Pay for ALL fuel actually used by using the "Fuel Quantity Used Function" as a guide.

6.) Pay at the rate of 10 gal per hour, as a last resort, if no other means exist to determine quantity used. 

*Note* of CAUTION:  If the "Fuel Quantity Used Function" is used in this manner, it may not give an accurate indication of how much fuel remains in the aircraft during a flight.  The function was designed to be reset only when the aircraft has been "Topped Off" to show how much fuel has been burned and how much fuel remains in the aircraft during the flight.  The fact that the Kentucky Wing will rarely top off intentionally leaves this function inaccurate, most of the time, to indicate correctly the amount of fuel remaining in the aircraft during the flight.  Please keep this in mind.