| Engine | 2.5L 4-cyl |
| Transmission | Automatic (S6) |
| Drive | Front-Wheel Drive |
| Fuel Type | Regular Gasoline |
| Vehicle Class | Small Sport Utility Vehicle 2WD |
| Engine Desc | SIDI |
| Start-Stop | No |
| EPA Vehicle ID | 43127 |
The 2021 Mazda CX-9 2WD, with its 2.5L turbocharged four-cylinder engine, gets 24 MPG combined. That fuel economy is adequate for its purpose: carrying families and their gear in style and comfort, with a bit of driving excitement uncommon in this class. It’s not a hybrid or a fuel-sipper; it’s a stylish three-row SUV that emphasizes the driving experience while remaining reasonably efficient.
City and highway performance
The EPA estimates the 2021 Mazda CX-9 2WD at 22 MPG in the city and 28 MPG on the highway. These numbers reflect the CX-9’s engine tuning and transmission programming. The turbocharger provides ample low-end torque, helping the CX-9 accelerate smoothly from a stop, which helps the city MPG rating. On the open road, the six-speed automatic transmission keeps the engine at a relatively low RPM, helping achieve the 28 MPG highway figure. Remember that these are EPA estimates, and your actual fuel economy will vary based on things like driving style, traffic, and using accessories like air conditioning.
Annual fuel cost
The EPA calculates the annual fuel cost for the 2021 Mazda CX-9 2WD at $1,800. This is based on driving 15,000 miles per year and using national average fuel prices. It’s a useful benchmark, but fuel prices change, and your individual driving habits might differ significantly from the EPA’s assumptions. If you drive more aggressively or spend more time in stop-and-go traffic, your annual fuel cost could easily exceed $1,800. But if you primarily drive on the highway and drive gently, you might spend less. This $1,800 provides a starting point for budgeting but is not a guaranteed outcome.
Real-world expectations
While the EPA provides a standardized estimate, many drivers find that their real-world fuel economy with the 2021 Mazda CX-9 2WD varies based on acceleration, cargo weight, and even tire pressure. Owners report figures ranging from slightly below the EPA estimates in heavy city driving to slightly above on long highway trips. Regular maintenance, including oil changes and tire rotations, is also critical for maintaining good fuel efficiency. The CX-9 has a responsive engine and handles well, so resisting the urge to push it hard is important for getting the best possible gas mileage.
How it compares
The 2021 Mazda CX-9 2WD sits in the middle of the pack for fuel economy compared to other three-row SUVs. The Kia Telluride is another popular choice, and it gets about 20 MPG combined. The Honda Pilot comes in at around 23 MPG overall. The Toyota Highlander, with its V6 engine (non-hybrid), gets similar numbers to the CX-9, around 24 MPG. The CX-9 stands out with its driving experience, offering a more engaging ride than many competitors. Some buyers accept the slightly lower fuel economy for the CX-9’s sharper handling and upscale interior. Consider the CX 9 MPG across all years to see how the numbers have evolved.
Tips to maximize efficiency
Avoid accelerating and braking too hard, the CX-9’s turbocharged engine is responsive, but using that power frequently will reduce fuel economy. Smooth, gradual acceleration and anticipating traffic can significantly improve your MPG. A heavy foot leads to more frequent stops at the gas pump.
Keep your tires properly inflated. Underinflated tires increase rolling resistance, which forces the engine to work harder and consumes more fuel. Check your tire pressure regularly and inflate them to the recommended level, found on a sticker inside the driver’s side door jamb. This step can make a noticeable difference.
Minimize idling. Letting the engine idle for extended periods wastes fuel. If you’re stopped for more than a minute, turn off the engine. Modern cars restart quickly and efficiently, so there’s no need to keep the engine running while waiting in a parking lot or at a long traffic light. Consider all Mazda fuel economy data when researching further.
Use cruise control on the highway. Cruise control helps maintain a consistent speed, which reduces unnecessary acceleration and deceleration. This is helpful on long highway trips, where variations in speed can significantly impact fuel economy. Be aware of changing road conditions and disengage cruise control if needed.
Reducing weight in the vehicle increases fuel economy. Remove any items from the trunk or cargo area that you don’t regularly need. Every extra pound contributes to increased fuel consumption, so decluttering your CX-9 can save you money.