The 2024 Mazda 3 sedan with all-wheel drive and the 2.5-liter engine achieves a combined fuel economy rating of 30 MPG, accepting that this isn’t a hyper-efficient commuter car made only to maximize every drop of fuel. Instead, it’s a vehicle that balances enjoyable driving, all-weather confidence, and a premium feel with acceptable, if not class-leading, fuel efficiency.

City and highway performance

The EPA estimates the 2024 Mazda 3 4-Door 4WD 2.5L 4-cyl will achieve 26 MPG in the city and 35 MPG on the highway. The city rating reflects the demands on the engine caused by stop-and-go traffic, where constant acceleration and deceleration impact fuel consumption. The highway figure, however, showcases the engine’s ability to cruise efficiently at higher speeds, pointing to its well-tuned gearing and perhaps the help of the automatic transmission’s torque converter lockup to minimize slippage. For buyers who prioritize backroad driving over pure commuting, the highway number will be more relevant to their typical driving style.

Annual fuel cost

The EPA estimates that the annual fuel cost for the 2024 Mazda 3 4-Door 4WD 2.5L 4-cyl will be $1,450. This figure is calculated based on driving 15,000 miles per year, with a mix of city and highway driving, using national average fuel prices. Drivers who frequently exceed 15,000 miles annually or live in areas with higher fuel costs can anticipate a higher annual expense. Likewise, more conservative drivers might spend less.

Real-world expectations

EPA estimates offer a useful baseline, but actual fuel economy can change depending on multiple factors. Aggressive driving habits, including rapid acceleration and hard braking, will reduce fuel efficiency. Similarly, carrying heavy loads or frequently driving in hilly terrain can also have a negative impact. Maintaining proper tire inflation and following the manufacturer’s recommended maintenance schedule will contribute to achieving fuel economy closer to the EPA estimates. Drivers who frequently use the all-wheel-drive system in dry conditions might also notice a slight decrease in MPG compared to mostly front-wheel-drive operation.

How it compares

The AWD Mazda 3 competes against a field of compact cars where front-wheel drive is the norm and all-wheel drive is a costly option. The Subaru Impreza, a direct competitor with standard all-wheel drive, achieves 31 MPG combined for the sedan. The Toyota Corolla, when equipped with front-wheel drive and its most efficient engine, reaches 35 MPG combined. However, adding all-wheel drive to the Corolla is not an available option. A front-wheel-drive Honda Civic can easily exceed 40 MPG on the highway in real-world driving, showing the fuel-saving benefits of forgoing AWD. These comparisons matter because the Mazda 3 buyer likely prioritizes driving enjoyment and all-weather capability over outright fuel economy leadership. The Mazda’s design and driving experience offset the slight MPG penalty for many.

Tips to maximize efficiency

Ensure your tires are properly inflated to the pressure specified on the door jamb sticker. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Check tire pressures regularly, especially during temperature swings.

Avoid aggressive acceleration and braking where possible. The Mazda 3’s 2.5-liter engine responds well to a light foot on the accelerator. Anticipate traffic flow and maintain a steady speed to conserve fuel. Smooth driving inputs are key to maximizing fuel efficiency in any vehicle.

Minimize idling. If you’re stopped for more than a minute or two, turn off the engine. Modern vehicles, including the Mazda 3, restart quickly and efficiently, preventing unnecessary fuel consumption during prolonged idling.

Reduce unnecessary weight. Remove any unneeded items from the trunk and rear seats. Extra weight increases the engine’s workload, leading to lower fuel economy. A lighter vehicle is a more efficient vehicle. Find all Mazda fuel economy data here.

Consider using a lighter-weight synthetic engine oil during your next oil change. This can reduce friction within the engine and provide a very small but measurable fuel economy benefit. Refer to your owner’s manual for the recommended oil viscosity. See 3 MPG across all years.