- Newest year: 2019
- Gas
- Small cars
2019 STI S209 MPG & Fuel Cost
1 configuration · 17 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 1 of 10 small car configurations, MY2019. Ranked against all rated configurations, not sales-weighted.
2019 STI S209 at a glance
The 2019 STI S209 has 1 configuration in the EPA database, rated 17 MPG combined. The most efficient is the S209 2.5L 4-cyl turbo AWD at 17 MPG, which costs about $4,670 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The S209 2.5L 4-cyl turbo AWD costs less to fuel than 1 of 10 small car configurations rated for MY2019 (class median $3,230 a year).
What the 2019 S209 2.5L 4-cyl turbo AWD costs to drive
Per month
$389
$4,670 a year ÷ 12
Per 25 miles
$7.78
Per 100 miles
$31.13
Five years
$23,350
5 × the yearly cost, prices held at today's level
vs the small car median
$1,440more a year
Class median $3,230 a year, MY2019
Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).
2019 STI S209 MPG
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| S209 (Most efficient) | 2.5L 4-cyl turbo | AWD | 15 | 21 | 17 | $4,670 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Fuel cost by state
Yearly cost of the S209 2.5L 4-cyl turbo AWD: $5,570 in California and $4,050 in Texas, a $1,520 difference.
- California $5,570
- Washington $5,240
- New York $4,620
- Florida $4,270
- Texas $4,050
Similar cars
Closest combined MPG among MY2019 small car models.
Generations
- 2019
Frequently asked questions
What gas mileage does the 2019 STI S209 get?
EPA rates the 2019 STI S209 at 17 MPG combined across 1 configuration. The most efficient, the S209 2.5L 4-cyl turbo AWD, is rated 17 MPG combined (15 city / 21 highway).
How much does it cost to fuel a 2019 STI S209 per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the S209 2.5L 4-cyl turbo AWD costs about $4,670 a year. Across all 1 configuration the cost runs $4,670 a year.
How much does it cost to drive a 2019 STI S209 100 miles?
About $31.13 per 100 miles for the S209 2.5L 4-cyl turbo AWD at premium gasoline $5.36/gal (U.S. average, Sep 2026). That is the annual cost over 15,000 miles divided by 150.
Is the 2019 STI S209 more efficient in the city or on the highway?
The S209 2.5L 4-cyl turbo AWD is rated 15 city and 21 highway MPG, so it is more efficient on the highway, by 6 MPG.
How does the 2019 STI S209 compare with other small car configurations?
The S209 2.5L 4-cyl turbo AWD costs about $4,670 a year to fuel, $1,440 more than the class median of $3,230, and less than 1 of 10 small car configurations. The comparison covers all 370 rated small car configurations for MY2019, not weighted by sales.