You mileage will vary dependent on the condition of your car, your driving habits and which engine/transmission you have. Check the web site below for exact specs.
http://consumerguideauto.howstuffworks.com/1995-to-2005-Pontiac-sunfire-6.htm
How many gallon of gas does a Pontiac sunfire gas tank hold
About 12 gallons in my 2003 ==According to Haynes,== 15.2 gallons. FriPilot
40 Liters
the 98 sunfire haz a 57.2 litre gas tank
i get about 490 kms per vtank
15.2 gallons or 57.5 litres
12
Its by the gas tank
According to the Haynes manual, 15.2 gallons.
The Fuel pump is in the gas tank.. You will need to drop the tank to fine the fuel pump..
it at the back of your gas tank
Under the car, in the rear.