- Newest year: 2019
- Gas
- Midsize cars
2018-2019 Subaru Legacy MPG & Fuel Cost
2 model years · 23–29 MPG combined
15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 7 of 10 midsize car configurations, MY2019. Ranked against all rated configurations, not sales-weighted.
2018-2019 Subaru Legacy at a glance
The 2018-2019 Subaru Legacy covers 2 model years in the EPA database (4 configurations in all), rated 23–29 MPG combined. The newest model year, 2019, costs about $2,290 a year to fuel for its most efficient version, the Legacy 2.5L 4-cyl AWD (29 MPG), at regular gasoline $4.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2019.
2018-2019 Subaru Legacy by model year
What the 2019 Legacy 2.5L 4-cyl AWD costs to drive
Per month
$191
$2,290 a year ÷ 12
Per 25 miles
$3.82
Per 100 miles
$15.27
Five years
$11,450
5 × the yearly cost, prices held at today's level
vs the midsize car median
$580less a year
Class median $2,870 a year, MY2019
Based on 15,000 miles a year and regular gasoline $4.36/gal (U.S. average, Sep 2026).
2019 Subaru Legacy MPG
Versus 2018: The most efficient configuration stays at 29 MPG. Its annual cost stays at $2,290.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Legacy 2.5L 4-cyl (Most efficient) | 2.5L 4-cyl | AWD | 25 | 34 | 29 | $2,290 |
| Legacy 3.6L 6-cyl | 3.6L 6-cyl | AWD | 20 | 28 | 23 | $2,860 |
2018 Subaru Legacy MPG
23–29 MPG · $2,290–$2,860/yr
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Legacy 2.5L 4-cyl (Most efficient) | 2.5L 4-cyl | AWD | 25 | 34 | 29 | $2,290 |
| Legacy 3.6L 6-cyl | 3.6L 6-cyl | AWD | 20 | 28 | 23 | $2,860 |
Fuel cost by state
Yearly cost of the Legacy 2.5L 4-cyl AWD: $3,120 in California and $2,000 in Texas, a $1,120 difference.
- California $3,120
- Washington $2,890
- New York $2,290
- Florida $2,170
- Texas $2,000
Similar cars
Closest combined MPG among MY2019 midsize car models.
Generations
- 2018-2019 (6th gen)
- 2020-2025 (7th gen)
Frequently asked questions
What gas mileage does the 2018-2019 Subaru Legacy get?
EPA rates the 2018-2019 Subaru Legacy at 23–29 MPG combined across 4 configurations and 2 model years. The most efficient version, the 2019 Legacy 2.5L 4-cyl AWD, is rated 29 MPG (25 city, 34 highway).
Which years had the best MPG in the 2018-2019 Subaru Legacy?
Every model year of the 2018-2019 Subaru Legacy tops out at 29 MPG combined, so no year is better than another.
Did EPA ratings change during the 2018-2019 Subaru Legacy?
Yes. Ratings changed in 2019.
How much does it cost to fuel a 2019 Subaru Legacy per year?
Driving 15,000 miles a year at regular gasoline $4.36/gal (U.S. average, Sep 2026), the Legacy 2.5L 4-cyl AWD costs about $2,290 a year. Across all 2 configurations the cost runs $2,290–$2,860 a year. That is a $570 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2019 Subaru Legacy 100 miles?
About $15.27 per 100 miles for the Legacy 2.5L 4-cyl AWD at regular gasoline $4.36/gal (U.S. average, Sep 2026), and between $15.27 and $19.07 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2019 Subaru Legacy more efficient in the city or on the highway?
The Legacy 2.5L 4-cyl AWD is rated 25 city and 34 highway MPG, so it is more efficient on the highway, by 9 MPG.
How does the 2019 Subaru Legacy compare with other midsize car configurations?
The Legacy 2.5L 4-cyl AWD costs about $2,290 a year to fuel, $580 less than the class median of $2,870, and less than 7 of 10 midsize car configurations. The comparison covers all 180 rated midsize car configurations for MY2019, not weighted by sales.
Is the 2019 Subaru Legacy different from the 2018 model?
The most efficient configuration stays at 29 MPG. Its annual cost stays at $2,290. EPA lists 2 configurations for 2019 against 2 configurations for 2018. See the 2018 Subaru Legacy for that year.