2008 GMC Sierra Denali Fuel Tank Size
2008 GMC Sierra Denali fuel tank size: 26.0 gal. From the owner's manual, PDF page 428.
26.0gal
2008 GMC Sierra Denali Owner's Manual, PDF page 428
Fuel TankOpen the manual at this page ↗Added Oct 21, 2026 · Updated
See where it's printed
Fuel tank size · All versions · PDF page 428
Fuel Tank
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As printed in the manual
| Applies to | Value | Manual says | Page |
|---|---|---|---|
| All versions | 26.0 gal | “Fuel Tank” | PDF page 428 ↗ |
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