2023 head-to-head · Full-Size Pickup
2023 GMC Sierra vs Jeep Gladiator
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 2023 GMC Sierra is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas, it costs about $2,325 a year to fuel (20 MPG), versus $2,447 for the 2023 Jeep Gladiator (19 MPG). That's roughly $122 a year, or about $612 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
- Jeep Gladiator
Side by side
| GMC Sierra | Jeep Gladiator | |
|---|---|---|
| $2,325 | Your annual fuel cost | $2,447 |
| 20 MPG | Combined efficiency | 19 MPG |
| 19 MPG | City | 17 MPG |
| 22 MPG | Highway | 22 MPG |
| 446 g/mi | Tailpipe CO₂ (g/mi) | 466 g/mi |
| 4/10 | EPA fuel economy score | 4/10 |
| 4/10 | EPA greenhouse gas score | 4/10 |
| Gas | Powertrain | Gas |
| Regular gasoline | Fuel | Regular gasoline |
| 2.7L 4-cyl turbo | Engine / motor | 3.6L 6-cyl |
| 8-speed automatic | Transmission | 8-speed automatic |
| RWD | Drivetrain | 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 vs Jeep Gladiator across model years
- GMC Sierra
- Jeep Gladiator
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 20 2023 full-size pickups, the GMC Sierra ranks 15th and the Jeep Gladiator 19th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2023 GMC Sierra or the 2023 Jeep Gladiator?
Measured by cost to drive, the GMC Sierra. The GMC Sierra is rated 20 MPG combined and the Jeep Gladiator 19 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2023 GMC Sierra vs. the Jeep Gladiator per year?
At 15,000 miles a year with $3.10/gal regular gas, about $2,325 for the GMC Sierra and $2,447 for the Jeep Gladiator.
GMC Sierra vs Jeep Gladiator in other years
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