23 MPG combined is respectable, not revolutionary, for the 2021 Mazda CX-9 4WD. But understand what this SUV *is* before dismissing it as mediocre. It’s a driver’s SUV, possessing an engaging character and an interior refinement that exceeds expectations for its price. Buyers accept this fuel economy rating because they prioritize style and driving dynamics over high efficiency. They want the space, safety, and all-weather grip, but they aren’t willing to sacrifice the joy of driving to get it.

City and highway performance

The EPA estimates the CX-9 4WD will achieve 20 MPG in the city and 26 MPG on the highway. The city figure reflects the realities of stop-and-go driving, where the CX-9’s weight and the engine’s turbo lag (a characteristic, not a flaw) impact fuel consumption. On the open road, however, the CX-9 performs better. The smooth-shifting 6-speed automatic transmission helps keep the engine in its sweet spot, allowing for relatively efficient cruising. Note the CX 9 MPG across all years and powertrains to see the natural trade-offs between power, drivetrain and gas mileage. The CX-9 prioritizes responsiveness over efficiency.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2021 Mazda CX-9 4WD is $1,900. 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-9 to other vehicles in its class, but keep in mind that your individual fuel costs will vary depending on your driving habits, the type of fuel you use, and the price of gasoline in your area. All Mazda fuel economy data can be seen at once, but you’ll probably want to focus on similar-sized models.

Real-world expectations

EPA estimates provide a standardized baseline, but real-world MPG often differs. CX-9 owners frequently report figures close to the EPA estimates, sometimes slightly above or below depending on driving style and conditions. Aggressive acceleration, frequent short trips, and heavy loads will negatively affect fuel economy. Consistent highway driving at moderate speeds can yield results closer to, or even exceeding, the 26 MPG highway rating. Tire pressure and proper maintenance are also key to achieving good fuel economy.

How it compares

The CX-9’s fuel economy is in the middle of its class compared to other three-row SUVs with all-wheel drive. For example, the Honda Pilot AWD achieves a combined 22 MPG (20 city/27 highway), while the Toyota Highlander AWD delivers 23 MPG combined (20 city/27 highway) with its standard V6. The Kia Telluride AWD, another popular choice, is rated at 21 MPG combined (19 city/24 highway). The Subaru Ascent AWD offers a slightly better 23 MPG city and 29 highway, but that fuel economy comes with a less engaging driving experience. Buyers considering the CX-9 recognize that there *are* more efficient options, but those alternatives often lack the Mazda’s distinctive style and driving character. They are willing to sacrifice a mile or two per gallon for a more premium and enjoyable driving experience.

Tips to maximize efficiency

Take it easy on the accelerator. The CX-9’s torque curve encourages enthusiastic driving, but smooth, gradual acceleration will significantly improve fuel economy. Avoid abrupt starts and stops, anticipating traffic flow and maintaining a steady pace whenever possible. Remember that the turbocharger needs fuel to deliver that extra burst of power.

Monitor your tire pressure. Underinflated tires increase rolling resistance, forcing the engine to work harder and burning more fuel. Check tire pressure regularly using a reliable gauge and inflate to the recommended pressure listed on the driver’s side doorjamb. This is a simple maintenance item that can have a noticeable impact on fuel economy.

Minimize idling. Leaving the engine running while stationary consumes fuel without covering any distance. If you anticipate being stopped for more than a minute or two, turn off the engine. Modern engines are designed to restart quickly and efficiently, so the fuel savings from avoiding prolonged idling can add up over time.

Use cruise control on the highway. Cruise control helps maintain a consistent speed, reducing unnecessary acceleration and deceleration. This can lead to improved fuel economy, especially on long highway drives. However, be mindful of terrain and traffic conditions, as cruise control may not be the most efficient option in hilly areas or congested traffic.

Consider a less aggressive driving mode. While the CX-9 doesn’t have explicit “Eco” and “Sport” buttons on the center console, driving gently will reward you with better gas mileage. Resist the temptation to floor the accelerator and your wallet will thank you later.