getting only 300miles a tank

[cloudasc]

I filled the car today after it was empty and it only took 13 gallons.

So if the manual is right then I would have had 4 gallons in the tank still even though the gauge read empty.

The light should come on around 13-14 gallon mark, which is pretty much down to empty. The needle actually will get to the bottom of the letter e (or the middle - in E before it will start to sputter, which is about 15-16 gallons used. Its commonly called the "reserve" after the light comes on, and is good for at least 30 miles. Good luck trying to get that last 1 gallon "puddle" out of the gas tank.

[emosun]

The light should come on around 13-14 gallon mark, which is pretty much down to empty. The needle actually will get to the bottom of the letter e (or the middle - in E before it will start to sputter, which is about 15-16 gallons used. Its called commonly called the "reserve" after the light comes on, and is good for at least 30 miles. Good luck trying to get that last 1 gallon "puddle" out of the gas tank.

So then the gauge is broken?

[Fleetw00d]

No, your gauge is not broken. As Cloudasc said, it is normal for the light to come on at about 14 gallons. This gives you some warning and time to fill the tank before you run out. I had my wagon die going around a long turning exit ramp because all the fuel sloshed to one side. I was able to coast to the end of the next exist ramp (about 1/2 mile, slightly downhill), then restart it and drive to a station at the exit. It took about 15.5 gallons to fill it. I had planned to get gas at this exist anyway, I had been pushing it a little too far after the light came on.