Subaru · Midsize cars · Gasoline
Subaru Legacy: MPG and annual fuel cost, 2025
The Subaru Legacy was last rated in the data for model year 2025, at 30 MPG combined, 5th of 12 midsize cars, in the upper half, ahead of 64% of the others.
- 30MPG combined5th of 12 in class
- $2,250a year in fuel5th of 12 in class
- 295g/mile CO2
Where it stands
The midsize cars rated for 2025 run from 22 to 135 MPG, with a median of 29 MPG.
Across every class it is tied for 4th of 24 gasoline models, in the top quarter.
In its class, just ahead of it is the Chevrolet Malibu at 31 MPG and just behind it is the Audi A5 Hybrid at 29 MPG.
Fuel cost and CO2
The file prices the fuel for its most efficient version at about $2,250 a year, assuming 15,000 miles a year with 55% of them in the city and regular gasoline at $4.47 per gallon. That is $375 less than the midsize cars median of $2,625.
It emits 295 g of CO2 per mile from the tailpipe; the midsize cars median is 302, a difference of 7 g/mile.
Rated versions
In the city the most efficient version is rated 27 and on the highway 35, 8 better on the open road. 2 versions are rated for 2025. The most efficient, Legacy AWD: 2.5 L, 4 cyl, Automatic (AV-S8), AWD, gets 30 MPG; the least efficient listed, Legacy AWD: 2.4 L, 4 cyl, Automatic (AV-S8), AWD, gets 26 MPG, a gap of 4 MPG. With the file's assumptions that gap is worth about $350 a year in fuel.
| Version | Combined MPG | City MPG | Highway MPG | Annual fuel cost | CO2 g/mile |
|---|---|---|---|---|---|
| Legacy AWD: 2.5 L, 4 cyl, Automatic (AV-S8), AWD | 30 | 27 | 35 | $2,250 | 295 |
| Legacy AWD: 2.4 L, 4 cyl, Automatic (AV-S8), AWD | 26 | 23 | 31 | $2,600 | 337 |
Year by year
The Subaru Legacy is in the data for 7 of the 8 model years from 2019 to 2026. Its best combined rating went from 29 in 2019 to 30 MPG in 2025, up 1 MPG. Fuel cost for the best version is $2,250 in the latest data against $2,300 in 2019, although the file applies today's fuel prices to every model year, so that change comes from the rating, not from prices.
| Model year | Versions | Best MPG | Lowest MPG | Fuel cost | CO2 g/mi | Class median |
|---|---|---|---|---|---|---|
| 2025 | 2 | 30 | 26 | $2,250 | 295 | 29 |
| 2024 | 2 | 30 | 26 | $2,250 | 295 | 30 |
| 2023 | 2 | 30 | 26 | $2,250 | 295 | 28 |
| 2022 | 2 | 30 | 27 | $2,250 | 295 | 28 |
| 2021 | 2 | 30 | 27 | $2,250 | 295 | 28.5 |
| 2020 | 2 | 30 | 27 | $2,250 | 295 | 28 |
| 2019 | 2 | 29 | 23 | $2,300 | 311 | 29 |
Similar models
| Model | Powertrain | Combined MPG | Annual fuel cost | Model year |
|---|---|---|---|---|
| Lexus ES | Gasoline | 28 | $2,400 | 2025 |
| Lexus LS Hybrid | Hybrid | 25 | $3,300 | 2025 |
| Audi S6 | Hybrid | 22 | $3,750 | 2025 |
| Toyota Prius Plug-in hybrid | Plug-in hybrid | 52 | $1,300 | 2025 |
| Polestar 2 | Electric | 114 | $650 | 2025 |
Rated almost identically and covered by this page:
- Chevrolet Malibu 31 MPG, $2,150 a year, 1 version, last rated 2025
Compare and rank
Rankings: Midsize cars.
Data: US EPA and DOE, as prepared in methods and data.