2025 head-to-head · Full-Size Pickup
2025 GMC Sierra Diesel vs Toyota Tacoma Hybrid
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 Toyota Tacoma Hybrid is the cheaper one to run. Driving 15,000 miles a year with $3.70/gal diesel fuel and $3.10/gal regular gas, it costs about $2,022 a year to fuel (23 MPG), versus $2,135 for the 2025 GMC Sierra Diesel (26 MPG). That's roughly $113 a year, or about $564 over five years.
Your numbers
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Fuel cost over 10 years
- GMC Sierra Diesel
- Toyota Tacoma Hybrid
Side by side
| GMC Sierra Diesel | Toyota Tacoma Hybrid | |
|---|---|---|
| $2,135 | Your annual fuel cost | $2,022 |
| 26 MPG | Combined efficiency | 23 MPG |
| 23 MPG | City | 22 MPG |
| 29 MPG | Highway | 24 MPG |
| 399 g/mi | Tailpipe CO₂ (g/mi) | 386 g/mi |
| 5/10 | EPA fuel economy score | 5/10 |
| 5/10 | EPA greenhouse gas score | 5/10 |
| Diesel | Powertrain | Hybrid |
| Diesel | Fuel | Regular gasoline |
| 3.0L 6-cyl turbo | Engine / motor | 2.4L 4-cyl turbo |
| 10-speed automatic | Transmission | 8-speed automatic |
| RWD | Drivetrain | Part-time 4WD |
✓ 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.
GMC Sierra Diesel vs Toyota Tacoma Hybrid across model years
- GMC Sierra Diesel
- Toyota Tacoma Hybrid
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 GMC Sierra Diesel ranks 11th and the Toyota Tacoma Hybrid 8th for lowest fuel cost.
The powertrains differ: the GMC Sierra Diesel is a diesel, while the Toyota Tacoma Hybrid is a full hybrid.
Frequently asked questions
Which is more fuel-efficient, the 2025 GMC Sierra Diesel or the 2025 Toyota Tacoma Hybrid?
Measured by cost to drive, the Toyota Tacoma Hybrid. The GMC Sierra Diesel is rated 26 MPG combined and the Toyota Tacoma Hybrid 23 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2025 GMC Sierra Diesel vs. the Toyota Tacoma Hybrid per year?
At 15,000 miles a year with $3.70/gal diesel fuel and $3.10/gal regular gas, about $2,135 for the GMC Sierra Diesel and $2,022 for the Toyota Tacoma Hybrid.
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