2024 GMC Sierra: Sierra 4WD · 2.7L · 4WD · 8-speed automatic
One configuration of the 2024 GMC Sierra as listed by our sources. Every figure below carries its source.
| Specification | Value | Source |
|---|---|---|
| Engine | 2.7L 4-cylinder turbocharged (SIDI; with Sport Mode) | EPA fueleconomy.gov |
| Displacement | 2.7 L | EPA fueleconomy.gov |
| Cylinders | 4 | EPA fueleconomy.gov |
| Fuel type | Gasoline | EPA fueleconomy.gov |
| Transmission | 8-speed automatic | EPA fueleconomy.gov |
| Drivetrain | 4WD | EPA fueleconomy.gov |
| Combined economy | 17 mpg (13.8 L/100 km) | EPA fueleconomy.gov |
| City economy | 17 mpg (13.8 L/100 km) | EPA fueleconomy.gov |
| Highway economy | 18 mpg (13.1 L/100 km) | EPA fueleconomy.gov |
Provenance & verification
- EPA fueleconomy.gov · US Government public data
Source checked: October 10, 2026
Data verified: October 10, 2026