19.5 Gallons
The gas tank on the 2011 Chevrolet Colorado holds 19 gal..
The gas tank on the 2006 Chevrolet Colorado holds 19 gal..
The gas tank on the 2005 Chevrolet Colorado holds 19 gal..
The gas tank on the 2010 Chevrolet Colorado holds 19 gal..
The gas tank on the 2012 Chevrolet Colorado holds 19.0 gal..
The gas tank on the 2008 Chevrolet Colorado holds 19 gal..
The gas tank on the 2009 Chevrolet Colorado holds 19 gal..
The gas tank on the 2007 Chevrolet Colorado holds 19 gal..
26 Gallons
The gas tank on the 2004 Chevrolet Suburban holds 31 gal..
The gas tank on the 2004 Chevrolet Tahoe holds 26 gal..