The 2025 Mazda CX-30 offers two engine options with distinct fuel consumption estimates. For the base 2.5-liter four-cylinder engine, EPA ratings are 26 MPG city, 33 MPG highway, and 29 MPG combined across all non-turbo trims[1][2][5]. For the turbocharged 2.5-liter engine available on higher trims, the EPA rates it at 22 MPG city, 30 MPG highway, and 25 MPG combined[1][2][5].
According to user-reported data, real-world fuel consumption may vary: some owners of the manual-transmission, 2.0-liter engine version have reported city driving at about 26 MPG and highway driving between 43–46 MPG, depending on traffic conditions[3].
The CX-30’s fuel tank capacity is 12.7 gallons, resulting in an estimated city driving range of up to 330 miles for non-turbo trims and a highway range of up to 419 miles[1].