It holds 16 gallons.
A 2002 Buick Century can hold up to 15.5 gallons of gas. The 2002 Buick Century gets 21 mpg on both highway and city roads.
17
18 gallons
15 gallons
12 gallons.
17
17 Gallons US, or 64.3 Litres
I think it is about 18 and a half gallons, I have a 2001.
17.43535537 gallons go here for info: http://www.internetautoguide.com/car-specifications/99-int/2000/buick/century/custom-sedan/526/index.html
16.5 gallons
How many gallons does a 1990 buick park ave gas tank hold