1997 GMC Safari Owner's Manual - Page 143

Fuel Gage The fuel gage tells you how much fuel you have remaining when the ignition is on. Here are thingssome owners ask about. None of these indicate aproblem with your fuel gage: 0 At the gas station, the gas pump shutsoff before the gage reads FULL (F). The fueltank will take either alittle more or a little up less fuel to fill than the gage shows. The gage moves a little when you turn a corneror speed up. The gagedoesn't go back to EMPTY (E) when you turn off the ignition. 0 0 0 (E), When the gage first indicates EMPTY you still have a little fuel left, but you should getmore fuel as soon as possible.