There are no gas leaks at all. The dealerships don't know what's wrong with the car, so I am hoping you can steer me in the right direction. Try replacing the Oxygen sensor and the fuel filter. Check the fuel pressure regulator and the catalytic converter. My truck has two gas tanks.
Front tank is slightly larger than the back.
Started checking, front tank gets the usual 17-mpg. Back tank varies from 11 to 13. No fuel smell. I checked your previously answered questions but didn't see anything quite the same. Your problem with the fuel tanks is probably caused by the fuel pumps.