2018 · Midsize Car · Gas
2018 Subaru Legacy MPG & fuel economy
The 2018 Subaru Legacy is a midsize car offered in 2 EPA-rated configurations. The most efficient version returns 29 MPG combined (25 city / 34 highway) on regular gasoline. Across the lineup, combined ratings range from 23 to 29 MPG. Among 74 midsize cars rated for 2018, it ranks 32nd for lowest fuel cost. At 15,000 miles a year with $3.10/gal regular gas, it costs about $1,603 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 2018 Subaru Legacy's fuel average is 12.3 km/L (8.1 L/100 km), or 29 MPG combined: 10.6 km/L in the city and 14.5 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 25 | 10.6 | 9.4 |
| Highway | 34 | 14.5 | 6.9 |
| Combined | 29 | 12.3 | 8.1 |
How it ranks among 2018 Midsize Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
Legacy MPG across model years
Full history →2 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| AWD · 2.5L 4-cyl · CVT Legacy AWD |
Gas | 25 MPG | 34 MPG | 29 MPG | — | $1,603 |
| AWD · 3.6L 6-cyl · CVT Legacy AWD |
Gas | 20 MPG | 28 MPG | 23 MPG | — | $2,022 |
Specs (most efficient configuration)
- Fuel
- Regular gasoline
- Engine / motor
- 2.5L 4-cyl
- Transmission
- CVT
- Drivetrain
- AWD
- Passenger volume
- 105 cu ft
- Cargo volume
- 15 cu ft
- Tailpipe CO₂
- 311 g/mi
- EPA fuel economy score
- 6/10
- EPA greenhouse gas score
- 6/10
2018 Subaru Legacy vs. rivals
Compare the 2018 Legacy
With any other car from any year, including other Legacy model years. Type a year to jump, e.g. "2015 Accord".
Frequently asked questions
What is the gas mileage of the 2018 Subaru Legacy?
Up to 29 MPG combined (25 city / 34 highway); ratings range from 23 to 29 MPG depending on configuration.
What fuel does the 2018 Subaru Legacy use?
Regular gasoline.
What is the fuel average in km/L for the 2018 Subaru Legacy?
The 2018 Subaru Legacy's fuel average is 12.3 km/L (8.1 L/100 km), or 29 MPG combined: 10.6 km/L in the city and 14.5 km/L on the highway.
How much does it cost to fuel the 2018 Subaru Legacy per year?
About $1,603 at 15,000 miles a year with $3.10/gal regular gas, or $10.69 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.