this question might have come up before, and YES i already did the search, but didnt find anything about it... so yah. I have a 2002 G20, and it claims that the fuel tank capacity is 15.9 gallons. Even if i let my gas go down to empty, I still only put in like 12 or a lil more gallons. Is sumthin up with that? Or do our cars have like 3 gallons of reserve gas after it hits the red line? This is all after gas light goes on too. I dont usually run it that low all the time, but i was trying to test it out.