2025 head-to-head · Full-Size Pickup
2025 Ford F-150 Lightning vs GMC Sierra Diesel
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
The 2025 Ford F-150 Lightning is the cheaper one to run. Driving 15,000 miles a year with 18¢/kWh electricity and $3.70/gal diesel fuel, it costs about $1,269 a year to fuel (72 MPGe), versus $2,135 for the 2025 GMC Sierra Diesel (26 MPG). That's roughly $866 a year, or about $4,328 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Ford F-150 Lightning
- GMC Sierra Diesel
Side by side
| Ford F-150 Lightning | GMC Sierra Diesel | |
|---|---|---|
| $1,269 | Your annual fuel cost | $2,135 |
| 72 MPGe | Combined efficiency | 26 MPG |
| 79 MPGe | City | 23 MPG |
| 65 MPGe | Highway | 29 MPG |
| 47 kWh | Electricity use (kWh/100 mi) | — |
| 300 mi | Driving range | — |
| 0 g/mi | Tailpipe CO₂ (g/mi) | 399 g/mi |
| 9/10 | EPA fuel economy score | 5/10 |
| 10/10 | EPA greenhouse gas score | 5/10 |
| 13.7 hrs | Charge time at 240V | — |
| Electric | Powertrain | Diesel |
| Electricity | Fuel | Diesel |
| Electric motors (420 kW) | Engine / motor | 3.0L 6-cyl turbo |
| Single-speed | Transmission | 10-speed automatic |
| 4WD | Drivetrain | RWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Ford F-150 Lightning vs GMC Sierra Diesel across model years
- Ford F-150 Lightning
- GMC Sierra Diesel
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Among 22 2025 full-size pickups, the Ford F-150 Lightning ranks 3rd and the GMC Sierra Diesel 11th for lowest fuel cost.
Because the Ford F-150 Lightning is fully electric, it has no tailpipe emissions and its running cost depends almost entirely on your electricity rate. Cheap overnight home charging widens its advantage over the GMC Sierra Diesel; relying on DC fast chargers can erase it.
Frequently asked questions
Which is more fuel-efficient, the 2025 Ford F-150 Lightning or the 2025 GMC Sierra Diesel?
Measured by cost to drive, the Ford F-150 Lightning. The Ford F-150 Lightning is rated 72 MPGe combined and the GMC Sierra Diesel 26 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2025 Ford F-150 Lightning vs. the GMC Sierra Diesel per year?
At 15,000 miles a year with 18¢/kWh electricity and $3.70/gal diesel fuel, about $1,269 for the Ford F-150 Lightning and $2,135 for the GMC Sierra Diesel.
Ford F-150 Lightning vs GMC Sierra Diesel in other years
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