2018 head-to-head · Full-Size Pickup
2018 GMC Sierra 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.
The 2018 Honda Ridgeline is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas, it costs about $2,114 a year to fuel (22 MPG), versus $2,325 for the 2018 GMC Sierra (20 MPG). That's roughly $211 a year, or about $1,057 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
- Honda Ridgeline
Side by side
| GMC Sierra | Honda Ridgeline | |
|---|---|---|
| $2,325 | Your annual fuel cost | $2,114 |
| 20 MPG | Combined efficiency | 22 MPG |
| 18 MPG | City | 19 MPG |
| 24 MPG | Highway | 26 MPG |
| 448 g/mi | Tailpipe CO₂ (g/mi) | 410 g/mi |
| 4/10 | EPA fuel economy score | 4/10 |
| 4/10 | EPA greenhouse gas score | 4/10 |
| Flex-fuel | Powertrain | Gas |
| Regular gasoline or E85 | Fuel | Regular gasoline |
| 4.3L 6-cyl | Engine / motor | 3.5L 6-cyl |
| 6-speed automatic | Transmission | 6-speed automatic |
| RWD | Drivetrain | FWD |
✓ 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 Honda Ridgeline across model years
- GMC Sierra
- 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 12 2018 full-size pickups, the GMC Sierra ranks 4th and the Honda Ridgeline 2nd for lowest fuel cost.
The powertrains differ: the GMC Sierra is a flex-fuel model, while the Honda Ridgeline is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2018 GMC Sierra or the 2018 Honda Ridgeline?
Measured by cost to drive, the Honda Ridgeline. The GMC Sierra is rated 20 MPG combined and the Honda Ridgeline 22 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2018 GMC Sierra vs. the Honda Ridgeline per year?
At 15,000 miles a year with $3.10/gal regular gas, about $2,325 for the GMC Sierra and $2,114 for the Honda Ridgeline.
GMC Sierra vs Honda Ridgeline in other years
More 2018 comparisons
GMC Sierra vs…
Or compare the 2018 GMC Sierra with anything else: