The 2021 Mazda CX-3 4WD gets 29 MPG combined. This is acceptable for a small crossover with all-wheel drive, neither particularly impressive nor terribly inefficient. The CX-3 appeals to a specific buyer: someone who values style, handling, and a premium feel in a small package, sometimes prioritizing those features over practicality or excellent fuel economy. For these buyers, 29 MPG is the cost of owning a Mazda.

City and highway performance

The EPA estimates the 2021 Mazda CX-3 4WD gets 27 MPG in the city and 32 MPG on the highway. This difference shows the CX-3’s suitability as a comfortable and efficient commuter, provided the commute includes open-road driving. The 2.0L engine, while not overly powerful, provides enough power for merging and passing, and the six-speed automatic transmission works well with the engine’s powerband. The CX-3’s light weight and responsive steering also make it feel agile, which makes driving around town pleasant.

Annual fuel cost

Using the EPA’s method of 15,000 miles per year and national average fuel prices, the estimated annual fuel cost for the 2021 Mazda CX-3 4WD is $1,500. This figure offers a good comparison point for the CX-3 with other vehicles in its class. Remember that this is an estimate, and your actual fuel costs will change depending on your driving habits, the type of driving you do, and local fuel prices. However, $1,500 is reasonable for the typical CX-3 driver.

Real-world expectations

EPA estimates provide a helpful baseline, but real-world fuel economy often differs. CX-3 owners often report getting numbers very close to the EPA’s estimates in mixed driving conditions. Aggressive driving, frequent short trips, and cold weather can all hurt fuel economy. On the other hand, consistent highway driving at moderate speeds can lead to results exceeding the EPA’s 32 MPG highway rating.

How it compares

In the subcompact SUV segment, the CX-3’s fuel economy compares well to other AWD models. The Honda HR-V, another popular choice, gets 28 MPG combined with AWD, while the Subaru Crosstrek gets 27 MPG combined. The Nissan Kicks, a front-wheel-drive-only competitor, gets a much better 33 MPG combined. However, the Kicks doesn’t offer AWD, which matters to many CX-3 buyers. You can even compare the CX 3 MPG across all years to see how the 2021 model compares. Those willing to accept less interior refinement might also consider the Kia Seltos, which gets 27 MPG combined with AWD. For those only looking at the Mazda brand, you can view all Mazda fuel economy data for comparison across their lineup.

Tips to maximize efficiency

Smooth and steady acceleration helps maximize fuel economy in the CX-3. Avoid hard starts and stops because they use fuel quickly. The CX-3’s engine works well with gentle throttle inputs, and keeping a steady pace will provide the best results.

Regular maintenance, including checking tire pressure and changing the oil, is important for maintaining good fuel efficiency. Underinflated tires increase rolling resistance, and old or dirty oil can reduce engine efficiency. Following Mazda’s recommended maintenance schedule will help your CX-3 run smoothly and efficiently.

On the highway, use cruise control when possible to keep a consistent speed. This reduces unnecessary acceleration and deceleration, improving fuel economy. Aim for a constant speed within the posted limits, and avoid frequent lane changes, which often require quick acceleration.

Reduce weight in the vehicle. Remove items you don’t need, as extra weight uses more fuel. Even small amounts of weight, such as clutter in the trunk, can add up and hurt fuel economy. Keeping the CX-3 light is a simple way to improve MPG.