petroldieselhybrid
12 photos from Wikimedia Commons · credits & licences
- 1. 2023 GMC Sierra 2500 Denali HD Ultimate in Titanium Rush Metallic, front left: Ethan Llamas· CC BY-SA 4.0
- 2. 2018 GMC Sierra Denali HD Duramax Crew Cab in Dark Slate Metallic, front left: Mr.choppers· CC BY-SA 3.0
- 3. 2019 GMC Sierra 1500 SLE X31 Off-Road front 5.31.19: Kevauto· CC BY-SA 4.0
- 4. 2019 GMC Sierra 1500 SLE X31 Off-Road rear 5.31.19: Kevauto· CC BY-SA 4.0
- 5. 2019 GMC Sierra AT4 5.3L V8, front 12.31.19: Kevauto· CC BY-SA 4.0
- 6. 2020 GMC Sierra 2500 Denali HD, Duramax 6.6L, front 2.1.20: Kevauto· CC BY-SA 4.0
- 7. 2020 GMC Sierra 2500 Denali HD, Duramax 6.6L, rear 2.1.20: Kevauto· CC BY-SA 4.0
- 8. 2022 GMC Sierra Denali interior: deathpallie325· CC BY-SA 4.0
- 9. 2022 GMC Sierra facelift interior: deathpallie325· CC BY-SA 4.0
- 10. 2023 GMC Sierra Denali interior: deathpallie325· CC BY-SA 4.0
- 11. 2023 GMC Sierra rear view: deathpallie325· CC BY-SA 4.0
- 12. 2024 GMC Sierra Elevation Crew Cab in Summit White, front left: Mr.choppers· CC BY-SA 3.0
what the fuel types mean
- petrol Cheapest to buy, simple, but fuel is expensive in NL.
- diesel Frugal on long trips, but NL road tax is much higher and city bans are growing.
- hybrid Petrol engine + small battery that charges itself. Great for city driving.
spec sheet
- built
- 1989–now
- body
- pickup, SUV
- engine
- 2.7 L–6.5 L
- cylinders
- 4–8
- turbo
- some versions
- power
- —
- drive
- 4x4, all-wheel drive, rear-wheel drive
- gearbox
- automatic, manual
- seats
- —
- doors
- —
- weight
- —
- fuel use
- —
- CO₂
- —
- US rating
- 9–68 mpg
- EV range
- up to 660 km
- US size class
- Special Purpose Vehicle, Standard Pickup Trucks
- avg new price NL
- —
Ranges cover every version ever sold. Blank means the sources don't say.
🇺🇸 US versions (783)
Every version the EPA tested, model years 1989–2026. mpg is combined; L/100 km converted.
| year | version | engine | gearbox | drive | fuel | mpg | L/100 |
|---|---|---|---|---|---|---|---|
| 2026 | Sierra 2WD | 2.7 L 4 cyl turbo | Automatic 8-spd | RWD | Regular | 20 | 11.8 |
| 2026 | Sierra 2WD | 3.0 L 6 cyl turbo | Automatic 10-spd | RWD | Diesel | 25 | 9.4 |
| 2026 | Sierra 2WD | 5.3 L 8 cyl | Automatic 10-spd | RWD | Regular | 17 | 13.8 |
| 2026 | Sierra 2WD with Sport Mode | 2.7 L 4 cyl turbo | Automatic 8-spd | RWD | Regular | 19 | 12.4 |
| 2026 | Sierra 2WD with Sport Mode | 5.3 L 8 cyl | Automatic 10-spd | RWD | Regular | 18 | 13.1 |
| 2026 | Sierra 4WD | 2.7 L 4 cyl turbo | Automatic 8-spd | 4WD | Regular | 18 | 13.1 |
| 2026 | Sierra 4WD | 5.3 L 8 cyl | Automatic 10-spd | 4WD | Regular | 16 | 14.7 |
| 2026 | Sierra 4WD | 6.2 L 8 cyl | Automatic 10-spd | 4WD | Premium | 16 | 14.7 |
| 2026 | Sierra 4WD AT4X | 6.2 L 8 cyl | Automatic 10-spd | 4WD | Premium | 15 | 15.7 |
| 2026 | Sierra 4WD AT4X with Sport Mode | 3.0 L 6 cyl turbo | Automatic 10-spd | 4WD | Diesel | 19 | 12.4 |
| 2026 | Sierra 4WD FFV | 5.3 L 8 cyl | Automatic 10-spd | 4WD | Gasoline or E85 | 17 | 13.8 |
| 2026 | Sierra 4WD with Sport Mode | 2.7 L 4 cyl turbo | Automatic 8-spd | 4WD | Regular | 17 | 13.8 |
| 2026 | Sierra 4WD with Sport Mode | 3.0 L 6 cyl turbo | Automatic 10-spd | 4WD | Diesel | 24 | 9.8 |
| 2026 | Sierra 4WD with Sport Mode | 5.3 L 8 cyl | Automatic 10-spd | 4WD | Regular | 17 | 13.8 |
| 2026 | Sierra Cab Chassis 2WD | 5.3 L 8 cyl | Automatic 10-spd | RWD | Regular | 16 | 14.7 |
| 2026 | Sierra Cab Chassis 4WD | 5.3 L 8 cyl | Automatic 10-spd | 4WD | Regular | 15 | 15.7 |
| 2026 | SIERRA EV Ext Range (11kW Charger) | 255 and 256 kW ACPM· 660 km range | Automatic (A1) | 4WD | Electricity | 68 | — |
| 2026 | SIERRA EV Ext Range (19kW Charger) | 255 and 256 kW ACPM· 619 km range | Automatic (A1) | 4WD | Electricity | 64 | — |
| 2026 | SIERRA EV Std Range (11kW Charger) | 255 and 256 kW ACPM· 455 km range | Automatic (A1) | 4WD | Electricity | 67 | — |
| 2026 | Sierra Mud Terrain Tires 4WD | 2.7 L 4 cyl turbo | Automatic 8-spd | 4WD | Regular | 17 | 13.8 |
| 2026 | Sierra Mud Terrain Tires 4WD | 5.3 L 8 cyl | Automatic 10-spd | 4WD | Regular | 16 | 14.7 |
| 2026 | Sierra Mud Terrain Tires 4WD | 6.2 L 8 cyl | Automatic 10-spd | 4WD | Premium | 15 | 15.7 |
| 2026 | Sierra Mud Terrain Tires 4WD FFV | 5.3 L 8 cyl | Automatic 10-spd | 4WD | Gasoline or E85 | 17 | 13.8 |
| 2026 | Sierra Mud Terrain Tires 4WD (Sport Mode) | 5.3 L 8 cyl | Automatic 10-spd | 4WD | Regular | 16 | 14.7 |
| 2026 | Sierra Mud Terrain Tires with Sport Mode | 3.0 L 6 cyl turbo | Automatic 10-spd | 4WD | Diesel | 23 | 10.2 |
Sources: fueleconomy.gov.Updated 2026-10-24.