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2026 Subaru Outback Wilderness (BU)
Shown: 2026 Subaru Outback Wilderness (BU). Photo: MercurySable99, CC BY-SA 4.0, via Wikimedia Commons
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  • Small SUVs
  • MY2018–2027

Subaru Outback MPG & Fuel Cost by Year

10 model years · 2018–2027

27 MPG
Combined
25 MPG
City
31 MPG
Highway
Annual cost · MY2027 Outback 2.5L 4-cyl AWD
$2,420

15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)

All Subaru models

Subaru Outback fuel economy at a glance

EPA has rated the Subaru Outback for 10 model years, 2018 to 2027. Across those years its combined rating runs 22–29 MPG. The latest model year, 2027, has 3 configurations rated 23–27 MPG combined and costing $2,420–$2,830 a year to fuel at regular gasoline $4.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2018 is the 2022 Outback 2.5L 4-cyl AWD, at 29 MPG. Model year 2027 is still being filled in by EPA, so its row may gain configurations.

Subaru Outback MPG by year

2224262830 2018202020262027 Gas 2224262830 201820202027 Gas
Combined MPG: the line is the most efficient configuration, the shaded band reaches down to the least efficient. Dotted lines mark new generations.
Subaru Outback: combined fuel economy and annual fuel cost for each model year, grouped by generation
Year Gas (MPG) $/yr
2026-2027* (BU) Generation page
2027 (partial) 23–27 $2,420–$2,830
2026 23–27 $2,420–$2,830
2020-2025 (BT) Generation page
2025 23–28 $2,310–$2,800
2024 23–28 $2,320–$2,800
2023 23–28 $2,320–$2,800
2022 24–29 $2,270–$2,780
2021 26–29 $2,270–$2,530
2020 26–29 $2,270–$2,530
2018-2019 (BS) Generation page
2019 22–28 $2,350–$2,930
2018 22–28 $2,350–$2,930

Costs use the current EIA price set and 15,000 miles a year for every year, so years are comparable. Green marks the best year for each powertrain.

Subaru Outback generations

3 generations between 2018 and 2027. Open one for the table of every model year and configuration.

2027 powertrain options

Gas · 2.4L, 2.5L
Combined
23–27 MPG
Per year
$2,420–$2,830
See gas configurations
EPA ratings: fueleconomy.gov file of Sep 29, 2026 · regular gasoline $4.36/gal (U.S. average, Sep 2026) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Frequently asked questions

What is the Subaru Outback's gas mileage by year?

EPA combined ratings for the Subaru Outback run 22–29 MPG across model years 2018 to 2027. The latest year, 2027, is rated 23–27 MPG.

Which Subaru Outback model year has the best gas mileage?

The 2022 Subaru Outback Outback 2.5L 4-cyl AWD has the highest combined rating since 2018, at 29 MPG.

How much does a Subaru Outback cost to fuel per year?

For MY2027, EPA-rated configurations cost $2,420–$2,830 a year to fuel, driving 15,000 miles at regular gasoline $4.36/gal (U.S. average, Sep 2026). The most efficient one costs $2,420.

Has the Subaru Outback's fuel economy improved over time?

No. The most efficient configuration moved from 28 MPG in 2018 to 27 MPG in 2027, 1 MPG less.

Which Subaru Outback model years have the same ratings?

EPA lists identical ratings as the previous year for 2021, 2024, 2027. The generation pages mark those years "same EPA ratings" and point to the year that holds the full table.

How many generations of the Subaru Outback are there?

EPA data covers 3 generations of the Subaru Outback: 2026-2027*, 2020-2025, 2018-2019. Each has its own page with a table for every model year.