Quote: Your supposed to have a small amount of pressure in your gas tank on a warm day when you open it, up to 1.5 PSI, your fuel system is a vapor saver and is designed to be under pressure. That way you don't smell gas in your garage or anywhere else.
See the pics, I don't think I get pressure in the gas tank as the tube itself is vented. The small vent tube goes under the car into the brace (don't know the exact word/have another pic to show)
