Other Fuel System Tank Assembly problems of the 2004 Infiniti FX35

I have been having problems with the fuel gauge on my 2004 Infiniti Fx35. It will only reflect 3/4 of a tank when I have filled it up with 17-18 gallons of premium fuel. Sometimes it reads empty(light goes on and screen reflects *** miles to empty) this happens alot. This has been going on and off for over 6 months. When I called the dealer to asked them they told me I could bring it in for them to check but I would have to pay. Even though my warranty expired I don't feel that I should have to pay for something that isn't working properly. The scary part is if I don't keep track of how many miles I have driven, I get scare I will get stuck somewhere when I am out with my 3 daughters. This also happen with the m45.

2004 Infiniti fx 35 dash board bubble , fuel gauge problem can not read full tank or empty tank.

The fuel guage gives a faulty reading. I can have a full tank, and the guage will read between 1/4 tank and empty, even prompting the red 'low fuel' indicator lightt to illuminate.

The gas gauge is always wrong. Since I first had it, the behavior of this component has never shown full, and shows empty far too early, often 6-8 gallons before the tank is out. I looked up my recall for my airbags, which this car has, and I noticed a number of complaints here. I searched Infiniti forums and found a large number of complaints with recommended fixes. I cleaned the parts, and it improved, but now the gauge is off again, and this isn't safe, since I cannot trust when I will run out of gas. I also wonder about my odometer and what its reading. There seems to be something wrong with these indicators.