Mazda CX-9 2WD
24 MPG The 2021 Mazda CX-9 2WD is EPA-rated at 24 MPG combined (22 city / 28 highway). Over 15,000 miles a year that is about 625 gallons, $2000 a year in fuel, or $0.133 per mile at $3.20/gal.
Across its full 2007–2021 run it averages 20.7 MPG, improving by 6 MPG over 15 model years.
Running cost at different fuel prices and mileages
The figure everyone actually wants, and the one the EPA does not publish — because it depends on a fuel price no agency will commit to.
| Fuel price | Per mile | 10,000 mi/yr | 15,000 mi/yr | 20,000 mi/yr |
|---|---|---|---|---|
| $2.50/gal | $0.104 | $1042 | $1563 | $2083 |
| $3.00/gal | $0.125 | $1250 | $1875 | $2500 |
| $3.20/gal | $0.133 | $1333 | $2000 | $2667 |
| $3.50/gal | $0.146 | $1458 | $2188 | $2917 |
| $4.00/gal | $0.167 | $1667 | $2500 | $3333 |
| $4.50/gal | $0.188 | $1875 | $2813 | $3750 |
| $5.00/gal | $0.208 | $2083 | $3125 | $4167 |
Every model year
| Year | Combined | City | Highway | EPA fuel cost/yr | CO₂ g/mi | Trims |
|---|---|---|---|---|---|---|
| 2021 | 24 MPG | 22 | 28 | $2600 | 363 | 1 |
| 2020 | 24 MPG | 22 | 28 | $2600 | 363 | 1 |
| 2019 | 24 MPG | 22 | 28 | $2600 | 362 | 1 |
| 2018 | 24 MPG | 22 | 28 | $2600 | 362 | 1 |
| 2017 | 24 MPG | 22 | 28 | $2600 | 362 | 1 |
| 2016 | 24 MPG | 22 | 28 | $2600 | 364 | 1 |
| 2015 | 19 MPG | 17 | 24 | $3300 | 456 | 1 |
| 2014 | 19 MPG | 17 | 24 | $3300 | 456 | 1 |
| 2013 | 19 MPG | 17 | 24 | $3300 | 456 | 1 |
| 2012 | 19 MPG | 17 | 24 | $3300 | 468 | 1 |
| 2011 | 19 MPG | 17 | 24 | $3300 | 468 | 1 |
| 2010 | 18 MPG | 16 | 22 | $3450 | 494 | 1 |
| 2009 | 18 MPG | 16 | 22 | $3450 | 494 | 1 |
| 2008 | 18 MPG | 16 | 22 | $3450 | 494 | 1 |
| 2007 | 18 MPG | 16 | 22 | $3450 | 494 | 1 |
Where a model year offered several engines or drivetrains, the figure is the average across all EPA-tested trims that year — the trim count is shown so you can see how much averaging is involved.
How it compares in its class
Among the 74 small sport utility vehicle 2wd models tracked here, the Mazda CX-9 2WD ranks 56 on current figures, against a class average of 34.8 MPG.
Closest more-efficient alternatives in the same class: Kia Sorento FWD (24.5), Toyota Highlander (24.5), Jeep Cherokee FWD (24.7), Alfa Romeo Stelvio (25), BMW X3 sDrive30i (25).
Tailpipe CO₂ is rated at 363 grams per mile, which works out to roughly 5.4 tonnes a year at 15,000 miles.
Questions
What MPG does the Mazda CX-9 2WD get?
The 2021 Mazda CX-9 2WD is rated at 24 MPG combined by the EPA — 22 city and 28 highway. Across all 15 model years in the database it averages 20.7 MPG, ranging from 18 to 24 depending on year and trim.
How much does a Mazda CX-9 2WD cost in fuel per year?
At 24 MPG and 15,000 miles a year, it burns about 625 gallons — roughly $2000 a year with fuel at $3.20 a gallon, or $0.133 per mile. The EPA's own published annual figure for the 2021 model is $2600.
Has the Mazda CX-9 2WD become more efficient over time?
Yes. It has gone from 18 MPG in 2007 to 24 in 2021 — an improvement of 6 MPG, or 33% across 15 model years.
Is the Mazda CX-9 2WD efficient for its class?
It ranks 56 of 74 in the Small Sport Utility Vehicle 2WD class on current figures, against a class average of 34.8 MPG. That is 10.8 worse than typical for the class.
EPA test figures from fueleconomy.gov. Cost per mile and annual fuel spend are computed at a reference price of $3.20 per gallon — use your own price. Estimates based on official test figures and average fuel prices. Real-world consumption varies with driving style, load, terrain and maintenance.