GMC Sierra vs Ford F-150 Lightning
The Ford F-150 Lightning is the more efficient of the two: it reaches 72 mpg combined versus 68 mpg for the GMC Sierra, a 4 mpg advantage and costs about $50 less per year to fuel.
Across 4 measured categories, the Ford F-150 Lightning leads in 4. Figures are EPA test data, not manufacturer claims.
2015–2026
GMC Sierra
Standard Pickup Trucks 4WD · 274 configurations
2022–2025
Ford F-150 Lightning
Standard Pickup Trucks 4WD · 15 configurations
Head-to-head specifications
| Metric | GMC Sierra | Ford F-150 Lightning |
|---|---|---|
| Best combined MPG | 68 mpg | 72 mpg ✓ |
| Best city MPG | 75 mpg | 79 mpg ✓ |
| Best highway MPG | 61 mpg | 65 mpg ✓ |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $1,100 | $1,050 ✓ |
| Lowest CO2 output | 392 g/mi | Not available |
| Engines offered | SIDI, 3.0, SIDI; FFV, SIDI; with Sport Mode | Not available |
| Transmissions | Automatic (A1), Automatic 10-spd, Automatic 8-spd | Automatic (A1) |
| Drivetrains | 4-Wheel Drive, Rear-Wheel Drive | 4-Wheel Drive, All-Wheel Drive |
| Fuel types | Electricity, Regular, Diesel | Electricity |
| EPA class | Standard Pickup Trucks 4WD | Standard Pickup Trucks 4WD |
| Years covered | 2015–2026 | 2022–2025 |
| Configurations on record | 274 | 15 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
Sierra vs F-150 Lightning: common questions
Which is better on gas, the GMC Sierra or the Ford F-150 Lightning?
The Ford F-150 Lightning is the more efficient of the two: it reaches 72 mpg combined versus 68 mpg for the GMC Sierra, a 4 mpg advantage and costs about $50 less per year to fuel.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the Ford F-150 Lightning runs about $1,050 a year in fuel at its most efficient configuration, versus about $1,100 for the GMC Sierra — a difference of roughly $50 per year.
What engines do the Sierra and F-150 Lightning offer?
GMC Sierra: SIDI, 3.0, SIDI; FFV, SIDI; with Sport Mode. Ford F-150 Lightning: no engine data on record.
Are they in the same vehicle class?
Yes — the EPA classifies both the GMC Sierra and the Ford F-150 Lightning as Standard Pickup Trucks 4WD, so they compete directly.
More Sierra comparisons
Comparison id: gmc-sierra-vs-ford-f-150-lightning