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The gas tank on the 2008 GMC Sierra-1500 holds 26.0 gal..
It will hold about 14-17 gallons of gas
28 gallons
18 Gallons
12 Gallons
19.5 gallons
16 gallons
18.5 Gallons
16.5 gallons
31 gallons totally empty.
17 gallons maximum
19 us Gallons
29 gallons, but the other half is hybrid.