2021 head-to-head · Midsize & Large SUV
2021 GMC Acadia vs Subaru Ascent
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 2021 GMC Acadia is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas, it costs about $1,860 a year to fuel (25 MPG), versus $2,022 for the 2021 Subaru Ascent (23 MPG). That's roughly $162 a year, or about $809 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 Acadia
- Subaru Ascent
Side by side
| GMC Acadia | Subaru Ascent | |
|---|---|---|
| $1,860 | Your annual fuel cost | $2,022 |
| 25 MPG | Combined efficiency | 23 MPG |
| 22 MPG | City | 21 MPG |
| 29 MPG | Highway | 27 MPG |
| 349 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 |
| Gas | Powertrain | Gas |
| Regular gasoline | Fuel | Regular gasoline |
| 2.0L 4-cyl turbo | Engine / motor | 2.4L 4-cyl turbo |
| 9-speed automatic | Transmission | CVT |
| FWD | 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 Acadia vs Subaru Ascent across model years
- GMC Acadia
- Subaru Ascent
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 65 2021 midsize & large SUVs, the GMC Acadia ranks 6th and the Subaru Ascent 10th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2021 GMC Acadia or the 2021 Subaru Ascent?
Measured by cost to drive, the GMC Acadia. The GMC Acadia is rated 25 MPG combined and the Subaru Ascent 23 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2021 GMC Acadia vs. the Subaru Ascent per year?
At 15,000 miles a year with $3.10/gal regular gas, about $1,860 for the GMC Acadia and $2,022 for the Subaru Ascent.
GMC Acadia vs Subaru Ascent in other years
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