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2017 Mazda CX-9 Grand Touring AWD (TC)
Shown: 2017 Mazda CX-9 Grand Touring AWD (TC). Photo: MercurySable99, CC BY-SA 4.0, via Wikimedia Commons
  • Newest year: 2023
  • Gas
  • Small SUVs

2016-2023 Mazda CX-9 MPG & Fuel Cost

8 model years · 23–24 MPG combined

23 MPG
Combined
20 MPG
City
26 MPG
Highway
Annual fuel cost · CX-9 2.5L 4-cyl turbo 4WD
$2,900

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

Cheaper to fuel than 4 of 10 small SUV configurations, MY2023. Ranked against all rated configurations, not sales-weighted.

2016-2023 Mazda CX-9 at a glance

The 2016-2023 Mazda CX-9 covers 8 model years in the EPA database (14 configurations in all), rated 23–24 MPG combined. The newest model year, 2023, costs about $2,900 a year to fuel for its most efficient version, the CX-9 2.5L 4-cyl turbo 4WD (23 MPG), at regular gasoline $4.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2017, 2018, 2019, 2020, 2021, 2022 and 2023. The best combined rating in the generation, 24 MPG, was reached in 2016, 2017, 2018, 2019, 2020 and 2021.

2016-2023 Mazda CX-9 by model year

2016-2023 Mazda CX-9: EPA combined rating and yearly fuel cost for each model year
Model yearPowertrainsCombined$/yrEPA ratings
2023 Gas 23 MPG $2,900 Ratings changed
2022 Gas 23 MPG $2,890 Ratings changed
2021 Gas 23–24 MPG $2,680–$2,890 Ratings changed
2020 Gas 23–24 MPG $2,680–$2,890 Ratings changed
2019 Gas 23–24 MPG $2,680–$2,890 Ratings changed
2018 Gas 23–24 MPG $2,680–$2,890 Ratings changed
2017 Gas 23–24 MPG $2,670–$2,880 Ratings changed
2016 Gas 23–24 MPG $2,670–$2,830 First year

What the 2023 CX-9 2.5L 4-cyl turbo 4WD costs to drive

Per month

$242

$2,900 a year ÷ 12

Per 25 miles

$4.83

Per 100 miles

$19.33

Five years

$14,500

5 × the yearly cost, prices held at today's level

vs the small SUV median

$240more a year

Class median $2,660 a year, MY2023

Based on 15,000 miles a year and regular gasoline $4.36/gal (U.S. average, Sep 2026).

2023 Mazda CX-9 MPG

Versus 2022: The most efficient configuration stays at 23 MPG. Its annual cost goes from $2,890 to $2,900, $10 more.

Gas · 2.5L
Combined
23 MPG
Per year
$2,900

Gas configurations (1)

2023 Mazda CX-9 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
CX-9 (Most efficient) 2.5L 4-cyl turbo 4WD 20 26 23 $2,900

2022 Mazda CX-9 MPG

23 MPG · $2,890/yr

Versus 2021: The most efficient configuration moves from 24 to 23 MPG, down 1. Its annual cost goes from $2,680 to $2,890, $210 more.

Gas · 2.5L
Combined
23 MPG
Per year
$2,890

Gas configurations (1)

2022 Mazda CX-9 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
CX-9 (Most efficient) 2.5L 4-cyl turbo 4WD 20 26 23 $2,890

2021 Mazda CX-9 MPG

23–24 MPG · $2,680–$2,890/yr

Versus 2020: The most efficient configuration stays at 24 MPG. Its annual cost stays at $2,680.

Gas · 2.5L
Combined
23–24 MPG
Per year
$2,680–$2,890

Gas configurations (2)

2021 Mazda CX-9 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
CX-9 2.5L 4-cyl turbo FWD (Most efficient) 2.5L 4-cyl turbo FWD 22 28 24 $2,680
CX-9 2.5L 4-cyl turbo 4WD 2.5L 4-cyl turbo 4WD 20 26 23 $2,890

2020 Mazda CX-9 MPG

23–24 MPG · $2,680–$2,890/yr

Versus 2019: The most efficient configuration stays at 24 MPG. Its annual cost stays at $2,680.

Gas · 2.5L
Combined
23–24 MPG
Per year
$2,680–$2,890

Gas configurations (2)

2020 Mazda CX-9 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
CX-9 2.5L 4-cyl turbo FWD (Most efficient) 2.5L 4-cyl turbo FWD 22 28 24 $2,680
CX-9 2.5L 4-cyl turbo 4WD 2.5L 4-cyl turbo 4WD 20 26 23 $2,890

2019 Mazda CX-9 MPG

23–24 MPG · $2,680–$2,890/yr

Versus 2018: The most efficient configuration stays at 24 MPG. Its annual cost stays at $2,680.

Gas · 2.5L
Combined
23–24 MPG
Per year
$2,680–$2,890

Gas configurations (2)

2019 Mazda CX-9 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
CX-9 2.5L 4-cyl turbo FWD (Most efficient) 2.5L 4-cyl turbo FWD 22 28 24 $2,680
CX-9 2.5L 4-cyl turbo 4WD 2.5L 4-cyl turbo 4WD 20 26 23 $2,890

2018 Mazda CX-9 MPG

23–24 MPG · $2,680–$2,890/yr

Versus 2017: The most efficient configuration stays at 24 MPG. Its annual cost goes from $2,670 to $2,680, $10 more.

Gas · 2.5L
Combined
23–24 MPG
Per year
$2,680–$2,890

Gas configurations (2)

2018 Mazda CX-9 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
CX-9 2.5L 4-cyl turbo FWD (Most efficient) 2.5L 4-cyl turbo FWD 22 28 24 $2,680
CX-9 2.5L 4-cyl turbo 4WD 2.5L 4-cyl turbo 4WD 20 26 23 $2,890

2017 Mazda CX-9 MPG

23–24 MPG · $2,670–$2,880/yr

Versus 2016: The most efficient configuration stays at 24 MPG. Its annual cost stays at $2,670.

Gas · 2.5L
Combined
23–24 MPG
Per year
$2,670–$2,880

Gas configurations (2)

2017 Mazda CX-9 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
CX-9 2.5L 4-cyl turbo FWD (Most efficient) 2.5L 4-cyl turbo FWD 22 28 24 $2,670
CX-9 2.5L 4-cyl turbo 4WD 2.5L 4-cyl turbo 4WD 20 26 23 $2,880

2016 Mazda CX-9 MPG

23–24 MPG · $2,670–$2,830/yr
Gas · 2.5L
Combined
23–24 MPG
Per year
$2,670–$2,830

Gas configurations (2)

2016 Mazda CX-9 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
CX-9 2.5L 4-cyl turbo FWD (Most efficient) 2.5L 4-cyl turbo FWD 22 28 24 $2,670
CX-9 2.5L 4-cyl turbo 4WD 2.5L 4-cyl turbo 4WD 21 26 23 $2,830

Fuel cost by state

Yearly cost of the CX-9 2.5L 4-cyl turbo 4WD: $3,940 in California and $2,530 in Texas, a $1,410 difference.

Gasoline prices: California: California state average; Washington: Washington state average; New York: New York state average; Florida: Florida state average; Texas: Texas state average (Sep 2026).
Fuel cost in every state

Similar cars

Closest combined MPG among MY2023 small SUV models.

EPA ratings: fueleconomy.gov file of Sep 29, 2026 · Prices: EIA regular gasoline, U.S. average, Sep 2026 ($4.36/gal) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Generations

Frequently asked questions

What gas mileage does the 2016-2023 Mazda CX-9 get?

EPA rates the 2016-2023 Mazda CX-9 at 23–24 MPG combined across 14 configurations and 8 model years. The most efficient version, the 2021 CX-9 2.5L 4-cyl turbo FWD, is rated 24 MPG (22 city, 28 highway).

Which years had the best MPG in the 2016-2023 Mazda CX-9?

The CX-9 2.5L 4-cyl turbo FWD reached the generation's best combined rating, 24 MPG, in 2016, 2017, 2018, 2019, 2020 and 2021. The lowest top rating, 23 MPG, was in 2022 and 2023.

Did EPA ratings change during the 2016-2023 Mazda CX-9?

Yes. Ratings changed in 2017, 2018, 2019, 2020, 2021, 2022 and 2023.

How does the 2016-2023 Mazda CX-9 compare with the previous generation?

The previous generation (2007-2015 Mazda CX-9) is rated 17–19 MPG combined and costs $3,360–$3,840 a year to fuel; the 2016-2023 model is rated 23–24 MPG and costs $2,670–$2,900 a year.

How much does it cost to fuel a 2023 Mazda CX-9 per year?

Driving 15,000 miles a year at regular gasoline $4.36/gal (U.S. average, Sep 2026), the CX-9 2.5L 4-cyl turbo 4WD costs about $2,900 a year. Across all 1 configuration the cost runs $2,900 a year.

How much does it cost to drive a 2023 Mazda CX-9 100 miles?

About $19.33 per 100 miles for the CX-9 2.5L 4-cyl turbo 4WD at regular gasoline $4.36/gal (U.S. average, Sep 2026). That is the annual cost over 15,000 miles divided by 150.

Is the 2023 Mazda CX-9 more efficient in the city or on the highway?

The CX-9 2.5L 4-cyl turbo 4WD is rated 20 city and 26 highway MPG, so it is more efficient on the highway, by 6 MPG.

How does the 2023 Mazda CX-9 compare with other small SUV configurations?

The CX-9 2.5L 4-cyl turbo 4WD costs about $2,900 a year to fuel, $240 more than the class median of $2,660, and less than 4 of 10 small SUV configurations. The comparison covers all 297 rated small SUV configurations for MY2023, not weighted by sales.

Is the 2023 Mazda CX-9 different from the 2022 model?

The most efficient configuration stays at 23 MPG. Its annual cost goes from $2,890 to $2,900, $10 more. EPA lists 1 configuration for 2023 against 1 configuration for 2022. See the 2022 Mazda CX-9 for that year.