Specifications
Engine Size8.1 L
Fuel TypeCNG
Transmission5 speed automatic
Drivetrain4-Wheel or All-Wheel Drive
Combined MPG9 MPG
GMC Sierra 2500 HD 4WD CNG Comparison with Similar Vehicles
| GMC Sierra 2500 HD 4WD CNG (this vehicle) |  GMC Sierra 4WD |  Ford Ranger 4WD |  Honda Ridgeline AWD |  Nissan Frontier 2WD |  GMC Canyon 2WD | |
|---|---|---|---|---|---|---|
| Price | — | — | $35,300–$57,350 | — | $29,770–$43,170 | $30,000–$45,000 |
| Engine Capacity | 8.1 L | 3L | 2.7L | 3.5L | 3.8L | 2.7L |
| Fuel Type | CNG | Diesel | Regular | Regular | Regular | Regular |
| Transmission | 5 speed automatic | Automatic 10-spd | Automatic (S10) | Automatic (S9) | Automatic (S9) | Automatic 8-spd |
| Body Type | Pickup Truck | Standard Pickup Trucks 4WD | Standard Pickup Trucks 4WD | Standard Pickup Trucks 4WD | Standard Pickup Trucks 2WD | Small Pickup Trucks 2WD |
About
The 2005 GMC Sierra 2500 HD 4WD CNG is a certified heavy-duty pickup truck built for demanding tasks. Its robust 8.1L engine delivers substantial power and torque, while its 4-wheel drive system ensures capability in various conditions.
Pros
- Certified safety status
- No recalls on record
- No complaints on record
- CNG fuel type
- 4WD capability
Cons
- Low city MPG
- Low highway MPG
- Low combined MPG
Complaints
No complaints on record.
Submit a complaintDiscussion0 comments
No discussion yet. Be the first.
Status history
Uncertain→Certified27 May 2026
Lemon Score: 100. 0 data points. v3 scoring.