2020 Mazda CX-9 MPG and Fuel Cost

The 2020 Mazda CX-9 is rated 23 to 24 mpg combined across 2 EPA-tested gas versions; the best is the 2.5L turbo 4-cyl · FWD · 6-speed automatic.

EPA fuel economy

2020 Mazda CX-9 · 2 EPA-tested versions

Best EPA rating

24MPG combined

22 city 28 highway

$2,700 a year to fuel

Fuel economy score5/10

2.5L turbo 4-cyl · FWD · 6-speed automatic

Best version costs $2,000 more in fuel over 5 years vs the average new vehicle (EPA)

Fuel cost: 15,000 miles a year at EPA's $4.32 a gallon (regular gas).

Data: US EPA, fueleconomy.govUpdated Sep 28, 2026

At EPA's price assumptions, fuel costs $2,700 to $2,800 a year. Ratings for the best versions are unchanged from 2019.

Every 2020 CX-9 version

EPA's ratings for each version it tested. Fuel cost is EPA's estimate for 15,000 miles a year at its current prices.

Version	Combined	City / Hwy	Fuel / year
2.5L turbo 4-cyl · FWD · 6-speed automatic Best EPA listing: CX-9 2WD	24 mpg	22 / 28	$2,700
2.5L turbo 4-cyl · 4WD · 6-speed automatic EPA listing: CX-9 4WD	23 mpg	20 / 26	$2,800

Fuel cost at your prices

EPA's annual cost uses 15,000 miles a year, 55% city driving and its current prices: $4.32 a gallon for regular gas. Change the numbers to match your driving.

Version	Per year	Per month	5 years
2.5L turbo 4-cyl · FWD · 6-speed automatic	$2,700	$225	$13,500
2.5L turbo 4-cyl · 4WD · 6-speed automatic	$2,817	$235	$14,087

At the default settings the results match EPA's annual cost before EPA rounds it to the nearest $50.

Mazda CX-9 MPG by model year

The best-rated version in each model year; the highlighted year is this page. Gas: 23 to 24 mpg (every year from 2016 to 2023); highest in 2016.

2020: gas 24 mpg

Show as a table

Mazda CX-9 best combined mpg by model year
Model year	Best gas version
2016	24
2017	24
2018	24
2019	24
2020	24
2021	24
2022	23
2023	23

How the 2020 CX-9 compares

2020 midsize SUVs covered on this site, ranked by their best combined rating. Fuel cost is for each model's cheapest version to run, at EPA's prices.

2020 model	Best combined	Best gas	Fuel / year
Toyota Highlander Best: hybrid	36 mpg	24 mpg	$1,800
Lexus RX Best: hybrid	30 mpg	23 mpg	$2,650
Ford Explorer Best: hybrid	28 mpg	24 mpg	$2,300
Hyundai Santa Fe Best: gas	25 mpg	25 mpg	$2,600
Kia Sorento Best: gas	25 mpg	25 mpg	$2,600
Ford Edge Best: gas	24 mpg	24 mpg	$2,700
Chevrolet Blazer Best: gas	24 mpg	24 mpg	$2,700
Mazda CX-9 This page Best: gas	24 mpg	24 mpg	$2,700
GMC Acadia Best: gas	24 mpg	24 mpg	$2,700
Kia Telluride Best: gas	23 mpg	23 mpg	$2,800
Honda Pilot Best: gas	23 mpg	23 mpg	$2,800
Nissan Pathfinder Best: gas	23 mpg	23 mpg	$2,800
Subaru Ascent Best: gas	23 mpg	23 mpg	$2,800
Nissan Murano Best: gas	23 mpg	23 mpg	$2,800
Hyundai Palisade Best: gas	22 mpg	22 mpg	$2,950
Honda Passport Best: gas	22 mpg	22 mpg	$2,950
Volkswagen Atlas Best: gas	22 mpg	22 mpg	$2,950
Jeep Grand Cherokee Best: gas	21 mpg	21 mpg	$3,100
Chevrolet Traverse Best: gas	21 mpg	21 mpg	$3,100
Dodge Durango Best: gas	21 mpg	21 mpg	$3,100
Buick Enclave Best: gas	21 mpg	21 mpg	$3,100

2020 CX-9 recalls and complaints

NHTSA lists 1 safety recall and 19 owner complaints for the 2020 CX-9.What they cover, and crash test ratings

Questions

Does 4WD lower the 2020 Mazda CX-9's gas mileage?

Yes. On versions that differ only in drive, 4WD lowers the combined rating by 1 mpg: the 2.5L turbo 4-cyl gets 24 mpg combined with front-wheel drive and 23 with 4WD.

Does the 2020 Mazda CX-9 need premium gas?

No. EPA lists every 2020 Mazda CX-9 version on regular gasoline.

How does the 2020 CX-9's MPG compare with the 2019?

For 2020, the best gas version is rated 24 mpg, the same as the year before.

Sources and method

US EPA and Department of Energy fuel economy data (fueleconomy.gov), file dated Sep 18, 2026.
EPA fuel price assumptions: regular $4.32, midgrade $4.93, premium $5.32, diesel $6.29 a gallon; electricity $0.15 per kWh.
Recall and complaint counts: NHTSA recall file dated Sep 29, 2026 and complaint file dated Sep 28, 2026.

Ratings are EPA estimates. Real-world mileage depends on how, where and in what weather you drive. How we build these pages. Spotted an error? Tell us.