How long can I drive till I run out of gas?
From what point? Tank full or low fuel light on?
Either way, we can’t give you an answer because we don’t know how you drive, the condition of the car, the roads you drive on, the time of year it is and on and on…
Besides all that, don’t run the car until it is empty, it can ruin your fuel pump and clog your fuel filter or fuel injectors if any sediment that is in the bottom of your gas tank on this 16 year old car gets sucked up.