2025 Gmc Sierra
Specs, fuel economy, oil capacity, recalls, and reliability for the 2025 Gmc Sierra.
- Engine
- 3L 6-cyl
- Drive
- 4-Wheel Drive
- Transmission
- Automatic 10-spd
- Fuel type
- Diesel
- Vehicle class
- Standard Pickup Trucks 4WD
- City MPG
- 19
- Highway MPG
- 20
- Combined MPG
- 19
- Est. annual fuel cost
- $2,950
What's on this 2025 Gmc Sierra page
- Gmc Sierra engine specs and horsepower
- EPA fuel economy for the 2025 Sierra — city, highway, and combined MPG
- Oil capacity and recommended viscosity for the Sierra
- Active NHTSA safety recalls and technical service bulletins
- Reliability score and commonly reported Sierra issues
- Towing & payload ratings (for Gmc trucks and SUVs)
- Manufacturer maintenance schedule by mileage
For developers
The data on this page is available via REST API. Decode VINs, look up recalls, get oil specs, and more — free tier available.