BMW · 2023
X7 xDrive40i 3.0L 6-cyl
✓ EPA Verified
Premium Gasoline
Standard Sport Utility Vehicle 4WD
All-Wheel Drive
City
21
MPG
Combined
22
MPG
Highway
25
MPG
Annual Fuel Cost
$2,650
Based on 15,000 miles/year · EPA estimates
vs avg gas vehicle
$500
more per year
Class Comparison — Standard Sport Utility Vehicle 4WD
Top 31%
Better than 69 out of 100 vehicles in its class for fuel efficiency.
This vehicle: 22 MPG
This vehicle
22 MPG
Class average
27 MPG
Class lowest
11 MPG
EPA Energy & Environment Scores
5
Energy Score
Out of 10
5
GHG Score
Out of 10
392 lbs
Annual CO₂
g/mile tailpipe CO₂
Yes
Start-Stop
Auto stop-start
Vehicle Specifications
Engine3.0L 6-cyl
TransmissionAutomatic (S8)
DriveAll-Wheel Drive
Fuel TypePremium Gasoline
Vehicle ClassStandard Sport Utility Vehicle 4WD
TrimHybrid
Engine DescSIDI & PFI; Mild Hybrid
Start-StopYes
EPA Vehicle ID45631

22 MPG combined from the 2023 BMW X7 xDrive40i isn’t going to win any fuel-sipping awards, nor should it. This is a large, luxurious, and effortlessly powerful SUV designed to transport families and their belongings in supreme comfort, not to set economy records. It’s a figure that reflects the trade-off between performance and efficiency in a vehicle of this size and capability, and one that X7 buyers have already considered.

City and highway performance

The xDrive40i’s MPG ratings break down to 21 MPG in the city and 25 MPG on the highway. The city number is more representative of the stop-and-go driving that many X7s encounter, navigating school zones, running errands, and handling daily family duties. This is where the X7’s weight is most evident, requiring more energy to accelerate from a standstill. The higher highway figure illustrates the efficiency of the 3.0L turbocharged inline-six engine when cruising at a constant speed. The smooth eight-speed automatic transmission helps keep the engine in its optimal rev range, contributing to better fuel economy on longer trips.

Annual fuel cost

The EPA estimates that the annual fuel cost for the 2023 BMW X7 xDrive40i is $2,650. This calculation assumes 15,000 miles of driving per year, with a blend of city and highway use, at average national fuel prices. Keep in mind that this is an estimate and your actual fuel costs will vary depending on your driving habits, the type of fuel you use, and local fuel prices. Drivers who spend more time in congested city environments or who accelerate often will likely exceed this figure. Conversely, those who primarily drive on the highway and prioritize fuel efficiency might see lower annual costs.

Real-world expectations

While the EPA estimates provide a standardized baseline, real-world fuel economy can differ. Factors like driving style, traffic conditions, tire pressure, and even the use of accessories such as air conditioning can all influence fuel consumption. X7 owners who frequently use the vehicle’s towing capacity or those who live in hilly areas can expect to see a reduction in MPG. Consistent maintenance, including regular oil changes and air filter replacements, also plays a role in maintaining fuel efficiency.

How it compares

The X7 competes with other luxury SUVs. The Mercedes-Benz GLS 450 4MATIC, with its own turbocharged inline-six engine, posts EPA estimates nearly identical to the X7. The all Bmw fuel economy data shows that opting for the higher-performance X7 M60i, with its V8 engine, drops the combined MPG significantly. The Land Rover Range Rover, another popular choice, hovers around 19-21 MPG combined, depending on the engine configuration. The Cadillac Escalade, a distinctly American alternative, performs worse, with even its diesel variants struggling to match the X7’s efficiency. These comparisons explain why many X7 buyers accept the fuel economy: it’s competitive within its class and offers a balance of performance and luxury.

Tips to maximize efficiency

Minimize aggressive acceleration and braking. The X7’s inline-six delivers ample torque at low RPMs, so there’s no need to aggressively push the engine during everyday driving. Smooth and gradual acceleration will improve fuel economy and enhance the overall comfort of the ride.

Ensure proper tire inflation. Underinflated tires increase rolling resistance, forcing the engine to work harder and consuming more fuel. Check your tire pressure regularly and inflate your tires to the recommended pressure listed on the doorjamb placard. This simple maintenance task can noticeably improve fuel economy and extend tire life.

Use cruise control on the highway. Maintaining a constant speed on the highway minimizes fluctuations in fuel consumption. Activate cruise control whenever possible on longer trips to optimize efficiency. The X7’s adaptive cruise control system can further enhance fuel economy by automatically adjusting speed to maintain a safe following distance.

Avoid unnecessary idling. Idling consumes fuel without covering any distance. If you anticipate stopping for more than a minute, turn off the engine. The X7’s automatic start/stop system automatically shuts off the engine at stoplights to conserve fuel, but you can manually engage this feature in other situations.

Keep up with scheduled maintenance. Regular maintenance, including oil changes, air filter replacements, and spark plug replacements, ensures that the engine is running efficiently. Neglecting these tasks can lead to reduced fuel economy and increased emissions. Refer to the owner’s manual for the recommended maintenance schedule or see X7 MPG across all years.