Check the owners manual
how many gallons are on a 2000 grand prix
about 15 gallons
15
15
17
65 liters or 17.1 US gallons
16.5 gallons.
according to the manual it holds 16 gallons
17.5 gallons
According to GM and www.feuleconomy.gov, the 2008 Pontiac Grand Prix has a 17 gallon gas tank.
17.1 gallon 16 gallons usable
18 gallons of regular gas. I used to drive one. GTP's use premium because of the supercharger.