My 2010 fuel meter is a little optimistic. It said I had used 16 gallons and averaged 24.5 mpg for the tank. When I filled it up, it took 17 gallons, and my actual milage was 22.5. I couldn't find anything in the manual showing how to callibrate the sensor, or whatever is telling the computer how much gas is being used. It is not off a whole lot, but if you were low and thought you had a gallon more left than you actually did, it could cause some problems.
I have had other similar guages that you could set the actual use, and it then callibrated itself based the difference between the 2 values, and after a couple of settings they became very accurate.
Anyone know about this?