Gas tank problems, why cant i fill it? Options

[jess_walsh]

Just got a 1999 GT Convertible. I read the book and know that the car has a 15+ gallon tank. However, I am never able to get more than 12.8 gallons in the tank, even when i have driven with the fuel light on for about 15 miles.

What gives? Anyone else have this problem? I guess what I want to know is whether it is shutting off before it fills or if the fuel light is coming on with like 3 gallons left in the tank.

I know i read that some of the Scion xA and xB were having some sort of problem such that the only way to fill the tank was to insert the fuel upside down when filling so that the auto shut off would not happen as easily.

Please help! I gotta know why I cant get 15 gallons in this thing.

Thanks in advance!

[jess_walsh]

I most certainly not having anyone fill the tank for me. I guess I am just not used to a fuel warning light that comes on with 2-3 gallons left. I mean, that is 50-75 additional miles i can go once the light comes on. I guess that is possible, just kind of nervewracking staring at that light without knowing for sure.