I have a 1 month old, 2003 V10 4x4. I have noticed that my fuel guage does not seem to read out as correctly as I would think it should.

What I am finding is that the guage drops from "full" to 3/4 tank after only about 70 miles. Thinking my fuel consumption was horrible, I filled the tank up and discovered that it only took a few gallons and I actually was getting about 11MPG. After traveling about 175 miles, I will have dropped to 1/2 tank (70 miles first 1/4 tank, 105 miles second 1/4 tank). It appears that I am going to be able to go 350 miles before dropping to 1/4 tank. So the guage drops quickly when full, and gets progressively better to the point of too much as the tank gets lower. So the float readout seems very skewed. Considering the X has a 44 Gal gas tank, I was thinking that I should be seeing around 100 miles for every 1/4 tank.

Again, this is not a MPG issue because the fill-ups seem true to the actual milege. It is more of how the guage reads.

Is this typical with other owners? If not, it this a defective float issue or is there a computer adjustment that the service shop can make to force the signals from the float to the guage be a bit more accurate?

 

Mine is the same exact way. Is this typical to al X's??

 

No, not typical of all... but there is a tsb about fuel gauge and fillups with the igniion on or in the accessory position...

 

In my case, ignition was not on or in the accessory position. Key was always out of the vehicle. The X was filled up normally.

 

My gauge (V10 4x4) goes the other direction. It takes almost 100 miles before the needle clears the full mark. Then the low-fuel light comes on when the gauge reads about 1/8-tank remaining (it took right at 40 gallons to fill).