2006 GMC Sierra Denali Fuel Tank Size
2006 GMC Sierra Denali fuel tank size: 26.0 gallons. From the owner's manual, PDF page 390.
26.0gallons
2006 GMC Sierra Denali Owner's Manual, PDF page 390
26.0 gallonsOpen the manual at this page ↗Added Oct 21, 2026 · Updated
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Fuel tank size · All versions · PDF page 390
26.0 gallons
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As printed in the manual
| Applies to | Value | Manual says | Page |
|---|---|---|---|
| All versions | 26.0 gallons | “26.0 gallons” | PDF page 390 ↗ |
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