The 2018 Mazda 3 5-Door with the 2.0L engine and automatic transmission gets 32 MPG combined, which is a good compromise for drivers who want an efficient commuter and a fun driving experience. While not the MPG leader in the compact hatchback class, it offers handling and responsiveness that many competitors can’t match. Buyers trade a few MPG for those attributes.

City and highway performance

The EPA estimates the 2018 Mazda 3 5-Door 2.0L at 28 MPG in the city and 37 MPG on the highway. The city figure reflects stop-and-go traffic, and the highway number assumes consistent speeds without frequent acceleration. The Mazda 3’s light weight and responsive engine help fuel economy around town. The well-tuned automatic transmission makes the most of the engine’s powerband in any driving situation. On the highway, the 3’s aerodynamic shape and efficient engine result in solid fuel economy, making it a comfortable and economical choice for longer road trips.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2018 Mazda 3 5-Door 2.0L at $1,350. This figure assumes 15,000 miles per year and national average fuel prices. Your actual fuel costs may vary depending on your driving habits, the type of fuel you use, and local fuel prices. Factors like frequent idling, aggressive acceleration, and driving in extremely cold weather can negatively impact fuel economy, increasing your overall cost. Compared to larger, less efficient vehicles, the Mazda 3 offers significant savings at the pump.

Real-world expectations

EPA estimates provide a useful baseline, but real-world fuel economy can vary. Many owners report achieving figures close to the EPA estimates in mixed driving. The Mazda 3’s i-ELOOP regenerative braking system, available on some trims, can improve fuel economy, particularly in city driving. Aggressive drivers or those who frequently carry heavy loads will likely see lower fuel economy, but careful driving habits can help you maximize your MPG. Refer to all Mazda fuel economy data to see how other Mazda models perform against their EPA ratings.

How it compares

The 2018 Mazda 3’s 32 MPG combined places it competitively in the compact hatchback segment. The Toyota Prius offers significantly better fuel economy, achieving around 52 MPG combined, but driving enjoyment suffers. The Honda Civic Hatchback with the 1.5L turbo engine achieves around 34 MPG combined, slightly better than the Mazda 3, but the Civic’s driving experience is generally considered less engaging. The Hyundai Elantra GT offers similar fuel economy to the Mazda 3, around 32 MPG combined, but its interior and handling aren’t as polished. The Mazda 3 appeals to buyers who want a balance of fuel economy, sporty handling, and a premium feel. See 3 MPG across all years to see how the Mazda 3 compares to prior year models.

Tips to maximize efficiency

Maintaining your Mazda 3 properly will ensure the best fuel economy. Regular oil changes with the correct type of oil are important, and keep your tires properly inflated. Consult your owner’s manual for the recommended maintenance schedule and tire pressure.

The Mazda 3’s responsive engine is tempting to push hard, but a smoother driving style can improve fuel economy. Avoid aggressive acceleration and braking, and maintain a consistent speed on the highway. Anticipate traffic conditions and coast when possible.

Minimize idling time, particularly in cold weather. Idling consumes fuel without covering any distance, so turn off the engine if you’re stopped for more than a minute or two. Warming up your car for extended periods is unnecessary with modern engines, so just drive gently after starting the engine.

Remove unnecessary weight from your vehicle. Extra cargo adds to the load on the engine, reducing fuel economy. Clean out your trunk and back seat, and remove any roof racks or accessories that you’re not using.

Use cruise control on the highway to maintain a consistent speed and avoid unnecessary acceleration. This will help you achieve the best fuel economy on long trips. Disengage cruise control when approaching hills or changing traffic conditions.