GMC Sierra vs Roush Performance F150
The GMC Sierra is the more efficient of the two: it reaches 68 mpg combined versus 13 mpg for the Roush Performance F150, a 55 mpg advantage and costs about $4,750 less per year to fuel.
Across 5 measured categories, the GMC Sierra leads in 5. Figures are EPA test data, not manufacturer claims.
2015–2026
GMC Sierra
Standard Pickup Trucks 4WD · 274 configurations
2016–2020
Roush Performance F150
Standard Pickup Trucks 4WD · 10 configurations
Head-to-head specifications
| Metric | GMC Sierra | Roush Performance F150 |
|---|---|---|
| Best combined MPG | 68 mpg ✓ | 13 mpg |
| Best city MPG | 75 mpg ✓ | 12 mpg |
| Best highway MPG | 61 mpg ✓ | 16 mpg |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $1,100 ✓ | $5,850 |
| Lowest CO2 output | 392 g/mi ✓ | 641 g/mi |
| Engines offered | SIDI, 3.0, SIDI; FFV, SIDI; with Sport Mode | 5.0 |
| Transmissions | Automatic (A1), Automatic 10-spd, Automatic 8-spd | Automatic (S10), Automatic (S6) |
| Drivetrains | 4-Wheel Drive, Rear-Wheel Drive | 4-Wheel Drive, Rear-Wheel Drive |
| Fuel types | Electricity, Regular, Diesel | Premium |
| EPA class | Standard Pickup Trucks 4WD | Standard Pickup Trucks 4WD |
| Years covered | 2015–2026 | 2016–2020 |
| Configurations on record | 274 | 10 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
Sierra vs F150: common questions
Which is better on gas, the GMC Sierra or the Roush Performance F150?
The GMC Sierra is the more efficient of the two: it reaches 68 mpg combined versus 13 mpg for the Roush Performance F150, a 55 mpg advantage and costs about $4,750 less per year to fuel.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the GMC Sierra runs about $1,100 a year in fuel at its most efficient configuration, versus about $5,850 for the Roush Performance F150 — a difference of roughly $4,750 per year.
What engines do the Sierra and F150 offer?
GMC Sierra: SIDI, 3.0, SIDI; FFV, SIDI; with Sport Mode. Roush Performance F150: 5.0.
Are they in the same vehicle class?
Yes — the EPA classifies both the GMC Sierra and the Roush Performance F150 as Standard Pickup Trucks 4WD, so they compete directly.
More Sierra comparisons
Comparison id: gmc-sierra-vs-roush-performance-f150