Returning 29 MPG combined, the 2017 Mazda 6 with the 2.5L 4-cylinder offers a balance of fuel efficiency and driving enjoyment, appealing to buyers who want a sporty feel without using too much gas. It fits between the very efficient cars and those built for all-out performance. The Mazda 6 doesn’t get hybrid-level MPG, but it delivers a responsive and fun drive in the mid-size sedan category. It’s a good choice for drivers who enjoy feeling connected to the road and want to be reasonably responsible with their budget because of its sporty handling.

City and highway performance

The EPA estimates for the 2017 Mazda 6 2.5L show different MPG for city and highway driving, reflecting its real-world performance. City driving is rated at 26 MPG. This acknowledges the engine’s need to work harder in stop-and-go conditions. The automatic transmission, while smooth, also leads to this lower number compared to the highway MPG. On the open road, the Mazda 6 gets an impressive 35 MPG highway. The engine’s efficiency and the transmission’s gearing combine for efficient cruising. The car’s aerodynamics also help at higher speeds, so the engine doesn’t work as hard to maintain speed. This makes it a good choice for commuters who drive many highway miles each week.

Annual fuel cost

The EPA estimates that the annual fuel cost for the 2017 Mazda 6 2.5L is $1,500. This is based on driving 15,000 miles per year using the EPA’s combined MPG rating and assuming national average fuel prices. The actual cost will vary depending on your driving habits, the ratio of city to highway driving, and gas prices. Driving aggressively with hard acceleration will increase this cost. Driving smoothly with gradual acceleration and careful braking will help keep it closer to—or even below—this estimate. This $1,500 figure is a useful benchmark for comparing the Mazda 6’s fuel costs to those of other cars.

Real-world expectations

The EPA estimates provide a baseline, but Mazda 6 drivers know that real-world MPG varies. Driving style, tire pressure, ambient temperature, and passengers or cargo all affect fuel consumption. Many owners report getting numbers close to the EPA estimates, especially on highway trips. Those who often drive in city traffic or accelerate quickly might see their average MPG drop slightly. Efficient driving habits and proper car maintenance are critical. Regularly checking tire pressure, avoiding idling, and minimizing hard acceleration can improve fuel economy. The car encourages more sporting driving, so drivers need to be careful to reach the EPA figure.

How it compares

The 2017 Mazda 6 2.5L 4-cylinder’s 29 MPG combined places it competitively in its class. Consider the Honda Accord, another mid-size sedan. The Accord’s 1.5T engine gets around 30 MPG combined, slightly better than the Mazda 6. The Toyota Camry, known for its reliability, offers about 32 MPG combined in its hybrid and 28 MPG with the standard 2.5L four-cylinder. Buyers must consider their priorities. The Accord 1.5T or Camry Hybrid might be better for those prioritizing low-cost operation. The Mazda 6 is a good alternative for those who value driving dynamics and fun, even if it means sacrificing a little fuel efficiency because of its responsive handling and connected feel. Explore 6 MPG across all years to see how this model compares to others.

Comparing all Mazda fuel economy data gives added context. The CX-5 compact SUV is a practical choice for those needing more cargo space and may get around 26 MPG, depending on how it’s configured. The Mazda 3 sedan or hatchback, with its smaller engine, has slightly better fuel economy, typically around 32 MPG combined. The tradeoff is overall size and performance.

Tips to maximize efficiency

One of the easiest ways to improve fuel economy in your Mazda 6 is to check and maintain the correct tire pressure. Underinflated tires increase rolling resistance, forcing the engine to work harder and use more fuel. Check the sticker on your driver’s side doorjamb for the recommended tire pressure, and check them regularly, particularly when the temperature changes.

Avoid idling. Modern engines are designed to be efficient. Restarting after a short stop uses less fuel than idling for a long time. If you’ll be stopped for more than 30 seconds, turn off the engine.

Smooth driving saves fuel. Avoid hard acceleration, hard braking, and changing speed erratically. Watch traffic and maintain a steady pace. The Mazda 6’s responsive engine can tempt you to accelerate quickly; resist if fuel economy is your goal.

Consider the Mazda 6’s cruise control on highway drives. Cruise control helps maintain speed, which can improve fuel efficiency by reducing speed changes. Be careful using cruise control in hilly areas, as it can lead to less efficient engine operation.

Reduce weight in your Mazda 6. Extra weight increases the engine’s workload, decreasing fuel economy. Remove anything unnecessary from the trunk and passenger area. Every little bit helps.