2023 head-to-head · Full-Size Pickup
2023 GMC Sierra Diesel vs Honda Ridgeline
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
AWD · 3.5L 6-cyl · 9-speed automatic · 21 MPG
The 2023 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 $2,135 a year to fuel (26 MPG), versus $2,214 for the 2023 Honda Ridgeline (21 MPG). That's roughly $80 a year, or about $398 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
- Honda Ridgeline
Side by side
| GMC Sierra Diesel | Honda Ridgeline | |
|---|---|---|
| $2,135 | Your annual fuel cost | $2,214 |
| 26 MPG | Combined efficiency | 21 MPG |
| 24 MPG | City | 18 MPG |
| 29 MPG | Highway | 24 MPG |
| 396 g/mi | Tailpipe CO₂ (g/mi) | 441 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 | 3.5L 6-cyl |
| 10-speed automatic | Transmission | 9-speed automatic |
| RWD | Drivetrain | AWD |
✓ 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 Honda Ridgeline across model years
- GMC Sierra Diesel
- Honda Ridgeline
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 Diesel ranks 9th and the Honda Ridgeline 12th for lowest fuel cost.
The powertrains differ: the GMC Sierra Diesel is a diesel, while the Honda Ridgeline is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2023 GMC Sierra Diesel or the 2023 Honda Ridgeline?
Measured by cost to drive, the GMC Sierra Diesel. The GMC Sierra Diesel is rated 26 MPG combined and the Honda Ridgeline 21 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2023 GMC Sierra Diesel vs. the Honda Ridgeline 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 $2,214 for the Honda Ridgeline.
GMC Sierra Diesel vs Honda Ridgeline in other years
More 2023 comparisons
GMC Sierra Diesel vs…
Or compare the 2023 GMC Sierra Diesel with anything else: