Hi, Have a 2001. S40 T19. Bought car a couple of months ago. When I fill up the tank, it doesn't seem to fill up completely. For example, I had a little less than a quarter of a tank, went to the gas station, said fill it up and after I paid and turned on the car the gauge goes up to a little past 3/4 full. It only took about 8.5 gallons, so I don't think its the gauge. Do you think that air pressure just shuts the pump off and I should ask the guy to keep pumping, car not full. Any thoughts would be appreciated. Thanks.