My reference web sites list the capacity for all Sunfires as 15.2 gallons US.
FriPilot
When filling an empty gas tank needs to be filled, it is important to know the tank size. The size of 2009 Pontiac grand prix gas tank is 17.5 gallons.
When buying a car it is important to look into the size of its gas tank. The gas tank size of a Pontiac g6 holds 16.4 gallons.
about 18 gal tank
It has an 17 gallon gas tank.
15.5 gallons
14.30 Gallons
13.2 gallon
15.5 Gallons
The 2005 Trailblazer has a 22 gallon tank.
The gas tank on the 99 -2005 Pontiac Grand Am SE is 14.4 -15 US gallons depending on if it is a steel tank or a polymer (plastic) tank. Polymer is 14.4 US gallons, and steel gas tank is 15 US gallons.
P205/65r15
4x6