While a combined 31 MPG doesn’t make the 2021 Mazda CX-3 2WD the most fuel-efficient vehicle in its class, it’s a strong showing for a subcompact crossover that values driving enjoyment. This is a number that appeals to city dwellers and suburban commuters who want a touch of Mazda’s signature zoom-zoom without spending too much on gas.

City and highway performance

The CX-3’s EPA rating is 29 MPG in the city and 34 MPG on the highway. The city figure is particularly relevant, as the CX-3’s nimble handling and compact size make it a good fit for navigating congested urban environments. The 2.0L four-cylinder engine, paired with a smooth-shifting six-speed automatic transmission, provides enough power for moving through traffic. The highway number is respectable, but some competitors offer even better mileage on long trips, often thanks to more advanced transmissions or smaller, turbocharged engines.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 Mazda CX-3 2WD at $1,400. This figure is based on driving 15,000 miles per year and using national average fuel prices. It’s a useful benchmark for comparing the CX-3 to other vehicles in its class. Remember that your actual fuel costs may vary depending on your driving habits, location, and the prevailing price of gasoline. This $1,400 estimate also makes it easier to compare the CX-3’s running costs against larger SUVs or trucks, where fuel expenses can quickly increase.

Real-world expectations

The EPA estimates provide a good starting point, but real-world MPG often differs. CX-3 drivers report figures close to the EPA’s estimates when driving sensibly. Aggressive acceleration, frequent short trips in cold weather, and carrying heavy loads can all negatively impact fuel economy. The CX-3’s relatively small fuel tank also means that even small dips in MPG can require more frequent trips to the gas station.

How it compares

The CX-3’s fuel economy is competitive within the subcompact crossover segment. The Nissan Kicks, known for its exceptional fuel efficiency, gets an impressive 31 MPG in the city, 36 MPG on the highway, and 33 MPG combined. The Hyundai Kona achieves 27 MPG city, 33 MPG highway, and 30 MPG combined with its base engine. The Honda HR-V, a slightly larger vehicle, delivers 28 MPG city, 34 MPG highway, and 30 MPG combined on front-wheel-drive models. While some competitors offer slightly better numbers on paper, the CX-3 offers better driving dynamics and a premium interior.

Browse CX 3 MPG across all years to review its historical fuel efficiency.

Tips to maximize efficiency

The CX-3’s 2.0L engine responds well to a gentle touch. Avoid aggressive acceleration and hard braking, as these actions significantly reduce fuel economy. Anticipate traffic flow and maintain a steady speed whenever possible.

Regular maintenance is important for optimal fuel economy. Make sure that your tires are properly inflated, your engine is tuned up, and your air filter is clean. These simple steps can help improve your MPG and keep your CX-3 running smoothly. Schedule maintenance at the intervals specified in your owner’s manual.

Reduce unnecessary weight. Carrying extra cargo can lower your fuel economy, especially during frequent city driving. Remove any items from your trunk or backseat that you don’t need to carry regularly.

Use the air conditioning sparingly. Running the A/C puts an extra load on the engine, which consumes more fuel. When possible, roll down the windows or use the ventilation system instead, especially at lower speeds. Find all Mazda fuel economy data to compare the CX-3 to other vehicles in the lineup.