The vehicle manual indicates my gas tank should hold a certain capacity but the fuel metered was more than the gas tank should have held. There is always the possibility that the pump might be inaccurate but typically the vehicle capacity rating is only an approximate volume. Manufacturers evaluate the entire fuel system when determining the tanks rated fuel capacity. The rated number can easily vary by 3%. The manufacturers even round off the rated amount to the nearest whole number. The fuel tank capacity also does not account for the vapor head space or the filter pipe. If a customer does not stop pumping gas when the automatic shutoff engages the customer can "overfill" the tank. If you feel a station has shorted you on gasoline, please contact the OCC at 521-2487.