- Gas
- Midsize cars
- MY2003–2021
Mazda6 MPG & Fuel Cost by Year
19 model years · 2003–2021
15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)
Mazda6 fuel economy at a glance
EPA has rated the Mazda6 for 19 model years, 2003 to 2021. Across those years its combined rating runs 19–32 MPG. The latest model year, 2021, has 2 configurations rated 26–29 MPG combined and costing $2,220–$2,470 a year to fuel at regular gasoline $4.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2003 is the 2016 Mazda6 2.5L 4-cyl FWD, at 32 MPG.
Mazda6 MPG by year
| Year | Gas (MPG) | $/yr |
|---|---|---|
| 2014-2021 (GJ1) Generation page | ||
| 2021 | 26–29 | $2,220–$2,470 |
| 2020 | 26–29 | $2,220–$2,470 |
| 2019 | 26–29 | $2,220–$2,470 |
| 2018 | 26–29 | $2,220–$2,470 |
| 2017 | 28–30 | $2,190–$2,330 |
| 2016 | 29–32 | $2,070–$2,260 |
| 2015 | 29–32 | $2,060–$2,280 |
| 2014 | 29–32 | $2,060–$2,250 |
| 2009-2013 (GH1) Generation page | ||
| 2013 | 21–24 | $2,670–$3,130 |
| 2012 | 21–25 | $2,640–$3,090 |
| 2011 | 21–25 | $2,640–$3,090 |
| 2010 | 20–24 | $2,720–$3,270 |
| 2009 | 20–24 | $2,720–$3,270 |
| 2003-2008 (GG1) Generation page | ||
| 2008 | 20–24 | $2,720–$3,270 |
| 2007 | 19–24 | $2,720–$4,230 |
| 2006 | 19–24 | $2,720–$4,230 |
| 2005 | 20–23 | $2,840–$3,270 |
| 2004 | 19–24 | $2,720–$3,440 |
| 2003 | 20–24 | $2,720–$3,270 |
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.
Mazda6 generations
3 generations between 2003 and 2021. Open one for the table of every model year and configuration.
2021 powertrain options
More Mazda models
Frequently asked questions
What is the Mazda6's gas mileage by year?
EPA combined ratings for the Mazda6 run 19–32 MPG across model years 2003 to 2021. The latest year, 2021, is rated 26–29 MPG.
Which Mazda6 model year has the best gas mileage?
The 2016 Mazda6 Mazda6 2.5L 4-cyl FWD has the highest combined rating since 2003, at 32 MPG.
How much does a Mazda6 cost to fuel per year?
For MY2021, EPA-rated configurations cost $2,220–$2,470 a year to fuel, driving 15,000 miles at regular gasoline $4.36/gal (U.S. average, Sep 2026). The most efficient one costs $2,220.
Has the Mazda6's fuel economy improved over time?
Yes. The most efficient configuration moved from 24 MPG in 2003 to 29 MPG in 2021, 5 MPG more.
Which Mazda6 model years have the same ratings?
EPA lists identical ratings as the previous year for 2007, 2010, 2012, 2021. The generation pages mark those years "same EPA ratings" and point to the year that holds the full table.