2023 GMC Sierra 4WD At4X
15MPG
Combined
1
Trim
2023
2024 →
Updated February 27, 2026
Looking at the 2023 GMC Sierra 4WD At4X? This Truck offers 15 combined MPG and comes with 1 available configurations. We break down the specs, safety data, and how it compares to the competition.
2023 GMC Sierra 4WD At4X Specifications
| Spec | Value |
|---|---|
| Combined MPG | 15 combined MPG |
| City MPG | 14 |
| Highway MPG | 17 |
| Body Style | Truck |
| Fuel Type | Premium |
| Drive | 4WD |
| Available Trims | 1 |
Annual Fuel Cost
Based on EPA estimates, the 2023 GMC Sierra 4WD At4X costs approximately $3,900 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.
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