- Gas
- Small cars
- MY2019–2019
STI S209 MPG & Fuel Cost by Year
1 model years · 2019–2019
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
STI S209 fuel economy at a glance
EPA has rated the STI S209 for 1 model years, 2019 to 2019. Across those years its combined rating runs 17 MPG. The latest model year, 2019, has 1 configuration rated 17 MPG combined and costing $4,670 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2019 is the 2019 S209 2.5L 4-cyl turbo AWD, at 17 MPG.
STI S209 MPG by year
| Year | Gas (MPG) | $/yr |
|---|---|---|
| 2019 Generation page | ||
| 2019 | 17 | $4,670 |
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.
STI S209 generations
1 generations between 2019 and 2019. Open one for the table of every model year and configuration.
2019 powertrain options
Frequently asked questions
What is the STI S209's gas mileage by year?
EPA combined ratings for the STI S209 run 17 MPG across model years 2019 to 2019. The latest year, 2019, is rated 17 MPG.
Which STI S209 model year has the best gas mileage?
The 2019 STI S209 S209 2.5L 4-cyl turbo AWD has the highest combined rating since 2019, at 17 MPG.
How much does a STI S209 cost to fuel per year?
For MY2019, EPA-rated configurations cost $4,670 a year to fuel, driving 15,000 miles at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient one costs $4,670.