2024 head-to-head · Full-Size Pickup
2024 GMC Sierra Diesel vs Toyota Tundra
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 2024 GMC Sierra Diesel 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 $2,220 a year to fuel (25 MPG), versus $2,325 for the 2024 Toyota Tundra (20 MPG). That's roughly $105 a year, or about $525 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
- GMC Sierra Diesel
- Toyota Tundra
Side by side
| GMC Sierra Diesel | Toyota Tundra | |
|---|---|---|
| $2,220 | Your annual fuel cost | $2,325 |
| 25 MPG | Combined efficiency | 20 MPG |
| 23 MPG | City | 18 MPG |
| 29 MPG | Highway | 23 MPG |
| 399 g/mi | Tailpipe CO₂ (g/mi) | 449 g/mi |
| 5/10 | EPA fuel economy score | 4/10 |
| 5/10 | EPA greenhouse gas score | 4/10 |
| Diesel | Powertrain | Gas |
| Diesel | Fuel | Regular gasoline |
| 3.0L 6-cyl turbo | Engine / motor | 3.4L 6-cyl turbo |
| 10-speed automatic | Transmission | 10-speed automatic |
| RWD | 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.
GMC Sierra Diesel vs Toyota Tundra across model years
- GMC Sierra Diesel
- Toyota Tundra
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 19 2024 full-size pickups, the GMC Sierra Diesel ranks 13th and the Toyota Tundra 16th for lowest fuel cost.
The powertrains differ: the GMC Sierra Diesel is a diesel, while the Toyota Tundra is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2024 GMC Sierra Diesel or the 2024 Toyota Tundra?
Measured by cost to drive, the GMC Sierra Diesel. The GMC Sierra Diesel is rated 25 MPG combined and the Toyota Tundra 20 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2024 GMC Sierra Diesel vs. the Toyota Tundra per year?
At 15,000 miles a year with $3.70/gal diesel fuel and $3.10/gal regular gas, about $2,220 for the GMC Sierra Diesel and $2,325 for the Toyota Tundra.
GMC Sierra Diesel vs Toyota Tundra in other years
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