GMC Sierra 4WD AT4X 2025 running costs in United States
Official U.S. EPA (fueleconomy.gov) figure for the 2025 GMC Sierra 4WD AT4X: 15–19 mpg (US). At United States prices (US$1.16/L diesel), driving 12,000 miles a year costs about US$2,779 — US$0.14 per mile.
Official figures — 2025 GMC Sierra 4WD AT4X
| Fuel types | Diesel · Petrol |
|---|---|
| Official consumption | 15.0–19.0 mpg (US) |
| Engine size | 3,000–6,200 cc |
| Configurations in source data | 2 |
| Data source | U.S. EPA (fueleconomy.gov) |
What it costs to run in United States
| Diesel (19.0 mpg (US)) | US$2,779/year |
|---|---|
| state inspection | US$0.00/year |
| Estimated annual running cost | US$2,779/year ≈ US$232/month |
Assumes 12,000 miles a year and the current average United States prices shown above (BLS/FRED US city average regular, Jul 2026). Insurance is not included because it depends on your age, history and the policy — add it in the full ownership calculator. Servicing, tyres and repairs also vary by car and driver.
How it compares with other diesel cars in United States
The average diesel car in our United States dataset uses 9.0 L/100km. The 2025 GMC Sierra 4WD AT4X uses 12.4 L/100km — about 36.8% more than that average, or roughly US$748 extra a year at 12,000 miles.
2025 GMC Sierra 4WD AT4X — configurations in the official data
| Fuel | Consumption | CO₂ | Engine | Power | Source variant |
|---|---|---|---|---|---|
| Diesel | 12.4 L/100km | — | 3000 cc | — | — |
| Petrol | 15.7 L/100km | — | 6200 cc | — | — |
Figures are the official certified values recorded in the U.S. EPA (fueleconomy.gov), grouped across 2 configurations. Real-world consumption is typically higher than the certified figure.
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These are estimates built from official certified figures and current average prices. They are not financial advice. Verify the exact figure for the car you are buying — consumption varies by trim, tyres and driving style.