2025 Mazda Cx-30 Mpg Comparison. Use our handy tool to get estimated annual fuel costs based on your driving habits. Models with the base engine get 26 mpg in the city and 33 mpg.

Fuel tank capacity, approx (gal.) safety scores should only be compared between. On the low end is the 2.5 carbon turbo which gets 25 mpg, with 22 mpg in the city and 30 mpg on the highway.