2020 Mazda CX-30

Fuel economy, running costs, emissions and safety · from U.S. EPA and NHTSA data

The 2020 Mazda CX-30 is sold in the U.S. with gasoline power. The EPA lists 4 configurations for this model year, with combined economy from 26 to 28 MPG and an estimated annual fuel cost of $2,300 to $2,500 at 15,000 miles.

Key numbers

What it costs to fuel

Across its configurations, the 2020 CX-30 costs about $2,300 to $2,500 a year to fuel at the EPA's 15,000-mile basis, averaging roughly $2,375. Over five years that is about $11,875 in fuel alone before maintenance, insurance and depreciation — which is why the running cost, not just the price, decides what a car really costs.

Relative to an average new vehicle, the most efficient CX-30 configuration saves about $0 in fuel over five years; less efficient versions spend more.

For context, the average combined economy of small sport utility vehicle 2wd in this dataset is about 26 MPG. The CX-30 sits roughly 1 MPG above that mark at its midpoint, making it more efficient than average for its EPA class.

Configurations and fuel economy

Emissions, safety and size

The 2020 CX-30 records tailpipe CO₂ of 313-334 g/mi, an EPA smog rating of 7-7 out of 10, a 5-star NHTSA overall crash rating. The EPA classifies it as small sport utility vehicle 2wd.

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Data: U.S. EPA FuelEconomy.gov (public domain) and NHTSA SafetyRatings. Figures are EPA estimates; real-world results vary.