2019 GMC Sierra
Fuel economy, running costs, emissions and safety · from U.S. EPA and NHTSA data
The 2019 GMC Sierra is sold in the U.S. with gasoline power. The EPA lists 22 configurations for this model year, with combined economy from 15 to 21 MPG and an estimated annual fuel cost of $3,100 to $4,700 at 15,000 miles.
Key numbers
| Model year | 2019 |
|---|---|
| Vehicle class | Standard Pickup Trucks 4WD |
| Fuel type(s) | Gasoline |
| Combined economy | 15-21 MPG |
| Best / worst combined | 21 / 15 MPG |
| Annual fuel cost | $3,100-$4,700 |
| Tailpipe CO₂ | 421-593 g/mi |
| EPA smog rating | 3-6 / 10 |
What it costs to fuel
Across its configurations, the 2019 Sierra costs about $3,100 to $4,700 a year to fuel at the EPA's 15,000-mile basis, averaging roughly $3,814. Over five years that is about $19,068 in fuel alone before maintenance, insurance and depreciation — which is why the running cost, not just the price, decides what a car really costs.
Relative to an average new vehicle, this Sierra configuration spends about $4,000 more on fuel over five years.
For context, the average combined economy of standard pickup trucks 4wd in this dataset is about 18 MPG. The Sierra sits roughly 0 MPG below that mark at its midpoint, making it thirstier than average for its EPA class.
Configurations and fuel economy
| Version | Engine | Drive | Trans | Fuel | Combined | Annual fuel |
|---|---|---|---|---|---|---|
| Sierra C10 2WD | 2.7L 4-cyl turbo | Rear-Wheel | Automatic | Gasoline | 21 MPG | $3,100 |
| Sierra K10 4WD | 2.7L 4-cyl turbo | 4-Wheel | Automatic | Gasoline | 20 MPG | $3,250 |
| Sierra C10 2WD | 5.3L 8-cyl | Rear-Wheel | Automatic | Gasoline | 19 MPG | $3,400 |
| Sierra C10 XFE 2WD | 5.3L 8-cyl | Rear-Wheel | Automatic | Gasoline | 19 MPG | $3,400 |
| Sierra LTD C15 2WD | 5.3L 8-cyl | Rear-Wheel | Automatic | Gasoline | 17 MPG | $3,800 |
| Sierra LTD K15 4WD | 5.3L 8-cyl | 4-Wheel | Automatic | Gasoline | 17 MPG | $3,800 |
| Sierra K10 4WD | 5.3L 8-cyl | 4-Wheel | Automatic | Gasoline | 17 MPG | $3,800 |
| Sierra K10 4WD | 6.2L 8-cyl | 4-Wheel | Automatic | Gasoline | 17 MPG | $4,700 |
| Sierra K10 4WD AT4 | 6.2L 8-cyl | 4-Wheel | Automatic | Gasoline | 17 MPG | $4,700 |
| Sierra K10 4WD AT4 | 5.3L 8-cyl | 4-Wheel | Automatic | Gasoline | 17 MPG | $3,800 |
| Sierra C10 2WD | 5.3L 8-cyl | Rear-Wheel | Automatic | Gasoline | 17 MPG | $3,800 |
| Sierra K10 4WD | 5.3L 8-cyl | 4-Wheel | Automatic | Gasoline | 17 MPG | $3,800 |
| Sierra C10 2WD | 4.3L 6-cyl | Rear-Wheel | Automatic | Gasoline | 17 MPG | $3,800 |
| Sierra K10 4WD | 4.3L 6-cyl | 4-Wheel | Automatic | Gasoline | 17 MPG | $3,800 |
| Sierra C10 Cab Chassis 2WD | 4.3L 6-cyl | Rear-Wheel | Automatic | Gasoline | 17 MPG | $3,800 |
| Sierra C10 Cab Chassis 2WD | 5.3L 8-cyl | Rear-Wheel | Automatic | Gasoline | 16 MPG | $4,050 |
| Sierra K10 Cab Chassis 4WD | 5.3L 8-cyl | 4-Wheel | Automatic | Gasoline | 15 MPG | $4,300 |
| Sierra K10 Cab Chassis 4WD | 4.3L 6-cyl | 4-Wheel | Automatic | Gasoline | 15 MPG | $4,300 |
Emissions, safety and size
The 2019 Sierra records tailpipe CO₂ of 421-593 g/mi, an EPA smog rating of 3-6 out of 10. The EPA classifies it as standard pickup trucks 4wd.
Compare this car
Open the comparison tool to line this 2019 Sierra up against any other vehicle in the database, or jump to other years and trims from the 2019 GMC Sierra overview.
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Data: U.S. EPA FuelEconomy.gov (public domain) and NHTSA SafetyRatings. Figures are EPA estimates; real-world results vary.