The gas tank on the 2001 GMC Sierra-1500 holds 26 gal..
18 gallons
17.8 gallons.
it holds 450 gallons
14 - 15 gallons
24.5 gallons
18 U.S. gallons
about 15 gallons
14.5 Gallons By: AristoPei
17.12 US Gallons
14.5 US GALLONs
18 U.S. gallons
11 gallons for the 2001 sedan.