2015 Buick Regal Fuel tank size
Depends on your version. Choose yours, or compare them here.
- 2.0L L4 Engine 18.6 gal
- 2.4L L4 Engine (LEA) 18.6 gal
18.6gal
2.0L L4 Engine
18.6gal
2.4L L4 Engine (LEA)
Owner's manual · PDF page 357 ↗Added Oct 16, 2026
See where it's printed
Fuel tank size · 2.0L L4 Engine · PDF page 357
18.6 gal
Fuel tank size · 2.4L L4 Engine (LEA) · PDF page 357
18.6 gal
Owner's manual · PDF page 357 ↗Added Oct 16, 2026
See where it's printed
Fuel tank size · 2.0L L4 Engine · PDF page 357
18.6 gal
Owner's manual · PDF page 357 ↗Added Oct 16, 2026
See where it's printed
Fuel tank size · 2.4L L4 Engine (LEA) · PDF page 357
18.6 gal
All versions
| Applies to | Value | Manual says | Page |
|---|---|---|---|
| 2.0L L4 Engine | 18.6 gal | “18.6 gal” | PDF page 357 ↗ |
| 2.4L L4 Engine (LEA) | 18.6 gal | “18.6 gal” | PDF page 357 ↗ |
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