2000 GMC Sierra 2500
15MPG
Combined
2
Trims
2000
Updated February 27, 2026
The 2000 GMC Sierra 2500 Truck provides 12–15 combined MPG depending on trim. We’ve compiled EPA fuel economy data, NHTSA safety ratings, and recall history so you can make an informed decision.
2000 GMC Sierra 2500 Specifications
| Spec | Value |
|---|---|
| Combined MPG | 12–15 combined MPG depending on trim |
| City MPG | 14 |
| Highway MPG | 18 |
| Body Style | Truck |
| Fuel Type | Regular |
| Drive | RWD |
| Available Trims | 2 |
Available Trims
| Trim | MPG (City/Hwy/Combined) | Engine | Transmission |
|---|---|---|---|
| Auto | 14/18/15 | 5.3L 8cyl | Automatic 4-spd |
| Auto | 11/15/12 | 6.0L 8cyl | Automatic 4-spd |
Annual Fuel Cost
Based on EPA estimates, the 2000 GMC Sierra 2500 costs approximately $3,325 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.
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