2023 GMC Sierra 4WD AT4X
6.2L 8-cyl · 10-speed automatic · 4WD
Official EPA record #45811 from FuelEconomy.gov · data 2026-07-26 · every assumption below is yours to edit. How this is computed
Per month
$326.15
Per year
$3,914
Per mile
32.6¢/mi
5-year total
$19,570
Your own average replaces the EPA laboratory values — never averaged together with them — and the driving-mix setting stops applying, because a figure you measured already contains your own mix.
Notes & official EPA estimate
Official FuelEconomy.gov estimate: $5,150/year — assumes 15,000 miles/year and EPA price assumptions. The figures above use your inputs instead.
GMC Sierra: running costs for every model year →
Official EPA efficiency
| Measure | Value |
|---|---|
| City MPG | 14 |
| Highway MPG | 17 |
| Combined MPG | 15 |
Official EPA estimates
| Estimate | Value |
|---|---|
| Official annual fuel cost (15,000 mi/yr) | $5,150/yr |
| Tailpipe CO₂ | 585 g/mi |
| EPA greenhouse gas score | 2/10 |
| EPA smog rating (Federal Tier 3 Bin 50) | 6/10 |
Source: U.S. EPA / DOE FuelEconomy.gov, vehicle record #45811 (record updated 2023-06-01). Snapshot processed 2026-07-26; page data last changed 2023-06-01.
Related configurations
Same year, same family
- Sierra 2WD · 5.3L 8-cyl · 10-speed automatic · RWD2023
- Sierra 2WD · 5.3L 8-cyl · 10-speed automatic · RWD2023
- Sierra 2WD · 3.0L 6-cyl · 10-speed automatic · RWD2023
- Sierra 2WD · 5.3L 8-cyl · 10-speed automatic · RWD2023
- Sierra 2WD · 5.3L 8-cyl · 10-speed automatic · RWD2023
- Sierra 2WD · 2.7L 4-cyl · 8-speed automatic · RWD2023
- Sierra 2WD · 2.7L 4-cyl · 8-speed automatic · RWD2023
- Sierra 4WD · 5.3L 8-cyl · 10-speed automatic · 4WD2023
Adjacent model years
- Sierra 2WD · 5.3L 8-cyl · 10-speed automatic · RWD2024
- Sierra 2WD · 5.3L 8-cyl · 10-speed automatic · RWD2024
- Sierra 2WD · 5.3L 8-cyl · 10-speed automatic · RWD2024
- Sierra 2WD · 5.3L 8-cyl · 10-speed automatic · RWD2024
- Sierra 2WD · 3.0L 6-cyl · 10-speed automatic · RWD2024
- Sierra 4WD · 5.3L 8-cyl · 10-speed automatic · 4WD2024
- Sierra Mud Terrain Tires 4WD · 5.3L 8-cyl · 10-speed automatic · 4WD2024
- Sierra 4WD · 6.2L 8-cyl · 10-speed automatic · 4WD2024