2020 Mazda CX-30 MPG and Fuel Cost
The 2020 Mazda CX-30 is rated 26 to 28 mpg combined across 3 EPA-tested gas versions; the best is the 2.5L 4-cyl · FWD · 6-speed automatic.
EPA fuel economy
2020 Mazda CX-30 · 3 EPA-tested versionsBest EPA rating
28MPG combined
25 city 33 highway
$2,300 a year to fuel
2.5L 4-cyl · FWD · 6-speed automatic
Fuel cost: 15,000 miles a year at EPA's $4.32 a gallon (regular gas).
At EPA's price assumptions, fuel costs $2,300 to $2,500 a year.
Every 2020 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 · FWD · 6-speed automatic Best
EPA listing: CX-30 2WD (also CX-30 2WD) |
28 mpg | 25 / 33 | $2,300 |
2.5L 4-cyl · 4WD · 6-speed automatic · With Cylinder Deactivation
EPA listing: CX-30 4WD |
27 mpg | 25 / 32 | $2,400 |
2.5L 4-cyl · 4WD · 6-speed automatic
EPA listing: CX-30 4WD |
26 mpg | 24 / 31 | $2,500 |
Fuel cost at your prices
EPA's annual cost uses 15,000 miles a year, 55% city driving and its current prices: $4.32 a gallon for regular gas. Change the numbers to match your driving.
| Version | Per year | 5 years |
|---|---|---|
2.5L 4-cyl · FWD · 6-speed automatic | $2,314 | $11,571 |
2.5L 4-cyl · 4WD · 6-speed automatic · With Cylinder Deactivation | $2,400 | $12,000 |
2.5L 4-cyl · 4WD · 6-speed automatic | $2,492 | $12,462 |
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.
2020: gas 28 mpgTap or drag across the chart for other years.
Show as a table
| Model year | Best gas version |
|---|---|
| 2020 | 28 |
| 2021 | 28 |
| 2022 | 26 |
| 2023 | 29 |
| 2024 | 29 |
| 2025 | 29 |
| 2026 | 27 |
How the 2020 CX-30 compares
2020 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.
| 2020 model | Best combined | Best gas | Fuel / year |
|---|---|---|---|
Best: gas |
30 mpg | 30 mpg | $2,150 |
Best: gas |
30 mpg | 30 mpg | $2,150 |
Best: gas |
30 mpg | 30 mpg | $2,150 |
Best: gas |
28 mpg | 28 mpg | $2,300 |
Mazda CX-30 This page Best: gas |
28 mpg | 28 mpg | $2,300 |
2020 CX-30 recalls and complaints
NHTSA lists 3 safety recalls and 33 owner complaints for the 2020 CX-30.What they cover, and crash test ratingsQuestions
Does 4WD lower the 2020 Mazda CX-30's gas mileage?
Yes. On versions that differ only in drive, 4WD lowers the combined rating by 2 mpg: the 2.5L 4-cyl gets 28 mpg combined with front-wheel drive and 26 with 4WD.
Does the 2020 Mazda CX-30 need premium gas?
No. EPA lists every 2020 Mazda CX-30 version on regular gasoline.
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 27, 2026 and complaint file dated Sep 26, 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.