Photo: GMC Sierra by Ethan Llamas, CC BY-SA 4.0, via Wikimedia Commons. It shows the model, not always this exact version.
GMC · model year 2026
2026 GMC Sierra 4WD AT4X
Pickup · 4-Wheel Drive · Gas · EPA class: Standard Pickup Trucks 4WD
EPA figures · 2026fueleconomy.gov
15MPG combined
14/16MPG city / highway
$5,500fuel a year
601 g CO₂ per mile 6.2 L 8-cyl Automatic 10-spd
This car on fueleconomy.gov, read 2 October 2026. Your own figures depend on how and where you drive.
Where it places
- 100 Fuel-efficient pickup trucks
Ordered by combined MPG #100 of 103 - 415 2026 cars and trucks
Every car of that year, A to Z #415 of 1,172 - 1307 Fuel-efficient AWD and 4WD cars
Ordered by combined MPG #1307 of 1,362 - 2077 Gas and hybrid cars by fuel cost
Ordered by fuel a year #2077 of 2,158 - 33 GMC cars
Every model year, newest first #33 of 2,900
Against fuel-efficient pickup trucks
Chart average 19 MPGBest 38 MPG
Lowest on the chart $1,750Chart average $3,736
Every figure on record
- Combined MPG
- 15 MPG
- City MPG
- 14 MPG
- Highway MPG
- 16 MPG
- Annual fuel cost
- $5,500
- Tailpipe CO₂
- 601 g per mile
- Model year
- 2026
- Body
- Pickup
- EPA size class
- Standard Pickup Trucks 4WD
- Drive
- 4-Wheel Drive
- Engine
- 6.2 L 8-cyl
- Transmission
- Automatic 10-spd
- Fuel
- Gasoline
Efficiency
Running cost
The car
Powertrain
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