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2017 Chevrolet Sonic LT sedan (T300)
Shown: 2017 Chevrolet Sonic LT sedan (T300). Photo: Kevauto, CC BY-SA 4.0, via Wikimedia Commons
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  • MY2012–2020

Chevrolet Sonic MPG & Fuel Cost by Year

9 model years · 2012–2020

29 MPG
Combined
26 MPG
City
34 MPG
Highway
Annual cost · MY2020 Sonic 1.4L 4-cyl turbo FWD
$2,270

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

All Chevrolet models

Chevrolet Sonic fuel economy at a glance

EPA has rated the Chevrolet Sonic for 9 model years, 2012 to 2020. Across those years its combined rating runs 28–32 MPG. The latest model year, 2020, has 2 configurations rated 29 MPG combined and costing $2,270 a year to fuel at regular gasoline $4.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2012 is the 2018 Sonic 1.4L 4-cyl turbo FWD, at 32 MPG.

Chevrolet Sonic MPG by year

283032 20122020 Gas 283032 20122020 Gas
Combined MPG: the line is the most efficient configuration, the shaded band reaches down to the least efficient. Dotted lines mark new generations.
Chevrolet Sonic: combined fuel economy and annual fuel cost for each model year, grouped by generation
Year Gas (MPG) $/yr
2012-2020 (T300) Generation page
2020 29 $2,270
2019 29–31 $2,100–$2,270
2018 28–32 $2,070–$2,290
2017 28–32 $2,060–$2,330
2016 28–32 $2,030–$2,360
2015 28–32 $2,030–$2,340
2014 28–32 $2,030–$2,340
2013 28–32 $2,030–$2,360
2012 28–32 $2,030–$2,320

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.

Chevrolet Sonic generations

1 generations between 2012 and 2020. Open one for the table of every model year and configuration.

2017 Chevrolet Sonic LT sedan (T300)

2012-2020 Chevrolet Sonic (T300)

28–32 MPG · $2,030–$2,360/yr

2020 powertrain options

Gas · 1.4L
Combined
29 MPG
Per year
$2,270
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 Chevrolet Sonic's gas mileage by year?

EPA combined ratings for the Chevrolet Sonic run 28–32 MPG across model years 2012 to 2020. The latest year, 2020, is rated 29 MPG.

Which Chevrolet Sonic model year has the best gas mileage?

The 2018 Chevrolet Sonic Sonic 1.4L 4-cyl turbo FWD has the highest combined rating since 2012, at 32 MPG.

How much does a Chevrolet Sonic cost to fuel per year?

For MY2020, EPA-rated configurations cost $2,270 a year to fuel, driving 15,000 miles at regular gasoline $4.36/gal (U.S. average, Sep 2026). The most efficient one costs $2,270.

Has the Chevrolet Sonic's fuel economy improved over time?

No. The most efficient configuration moved from 32 MPG in 2012 to 29 MPG in 2020, 3 MPG less.