2026 Mazda CX-30 MPG and Fuel Cost

The 2026 Mazda CX-30 is rated 25 to 27 mpg combined across 2 EPA-tested gas versions; the best is the 2.5L 4-cyl · 4WD · 6-speed automatic.

EPA fuel economy

2026 Mazda CX-30 · 2 EPA-tested versions

Best EPA rating

27MPG combined

24 city 31 highway

$2,300 a year to fuel

Fuel economy score5/10

2.5L 4-cyl · 4WD · 6-speed automatic

Best version costs $500 more in fuel over 5 years vs the average new vehicle (EPA)

Fuel cost: 15,000 miles a year at EPA's $4.00 a gallon (regular gas).

Data: US EPA, fueleconomy.govUpdated Nov 12, 2026

At EPA's price assumptions, fuel costs $2,300 to $2,500 a year. Compared with 2025, the best gas version is down 2 mpg.

Too new to rank against other CX-30 years

The 2026 CX-30 has not had three full years of owner complaints yet.

Years to avoid: 2021. Based on owner complaints, not adjusted for sales.

Every CX-30 year ranked The 2026 CX-30's recalls and problems

Every 2026 CX-30 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 4-cyl · 4WD · 6-speed automatic Best EPA listing: CX-30 4WD	27 mpg	24 / 31	$2,300
2.5L turbo 4-cyl · 4WD · 6-speed automatic EPA listing: CX-30 4WD	25 mpg	22 / 30	$2,500

Fuel cost at your prices

EPA's annual cost uses 15,000 miles a year, 55% city driving and its current prices: $4.00 a gallon for regular gas. Change the numbers to match your driving.

Version	Per year	Per month	5 years
2.5L 4-cyl · 4WD · 6-speed automatic	$2,222	$185	$11,111
2.5L turbo 4-cyl · 4WD · 6-speed automatic	$2,400	$200	$12,000

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

Mazda CX-30 MPG by model year

The best-rated version in each model year; the highlighted year is this page. Gas: 26 to 29 mpg (every year from 2020 to 2026); highest in 2023.

2026: gas 27 mpg

Show as a table

Mazda CX-30 best combined mpg by model year
Model year	Best gas version
2020	28
2021	28
2022	26
2023	29
2024	29
2025	29
2026	27

Every CX-30 year's ratings in one table

How the 2026 CX-30 compares

2026 subcompact 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.

2026 model	Best combined	Best gas	Fuel / year
Toyota Corolla Cross Best: hybrid	42 mpg	32 mpg	$1,500
Subaru Crosstrek Best: hybrid	36 mpg	29 mpg	$1,750
Hyundai Kona Best: gas	31 mpg	31 mpg	$2,000
Nissan Kicks Best: gas	31 mpg	31 mpg	$2,000
Chevrolet Trax Best: gas	30 mpg	30 mpg	$2,100
Buick Encore GX Best: gas	30 mpg	30 mpg	$2,100
Kia Seltos Best: gas	29 mpg	29 mpg	$2,150
Honda HR-V Best: gas	28 mpg	28 mpg	$2,200
Mazda CX-30 This page Best: gas	27 mpg	27 mpg	$2,300

2026 CX-30 recalls and complaints

NHTSA lists 0 safety recalls and 4 owner complaints for the 2026 CX-30.

NHTSA's overall crash rating: 5 stars.

See the 2026 CX-30 recalls and problems

Questions

Does the 2026 Mazda CX-30 need premium gas?

No. EPA lists every 2026 Mazda CX-30 version on regular gasoline.

How does the 2026 CX-30's MPG compare with the 2025?

For 2026, the best gas version is rated 27 mpg, down 2 from 29.

Sources and method

US EPA and Department of Energy fuel economy data (fueleconomy.gov), file dated Nov 4, 2026.
EPA fuel price assumptions: regular $4.00, midgrade $4.61, premium $5.01, diesel $6.13 a gallon; electricity $0.15 per kWh.
Recall and complaint counts: NHTSA recall file dated Nov 12, 2026 and complaint file dated Nov 11, 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.