2023 GMC Sierra 1500 Fuel tank size
28.3gal
Long Box
2023 GMC Sierra 1500 Owner's Manual, PDF page 442
28.3 galOpen the manual at this page ↗Added Oct 15, 2026
See where it's printed
Fuel tank size · Long Box · PDF page 442
28.3 gal
See every quote (1 value)
As printed in the manual
| Applies to | Value | Manual says | Page |
|---|---|---|---|
| Long Box | 28.3 gal | “28.3 gal” | PDF page 442 ↗ |
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