BMW · 2023
X5 xDrive40i 3.0L 6-cyl
✓ EPA Verified
Premium Gasoline
Standard Sport Utility Vehicle 4WD
All-Wheel Drive
City
21
MPG
Combined
23
MPG
Highway
25
MPG
Annual Fuel Cost
$2,500
Based on 15,000 miles/year · EPA estimates
vs avg gas vehicle
$350
more per year
Class Comparison — Standard Sport Utility Vehicle 4WD
Top 25%
Better than 75 out of 100 vehicles in its class for fuel efficiency.
This vehicle: 23 MPG
This vehicle
23 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
389 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; Mild Hybrid
Start-StopYes
EPA Vehicle ID45572

23 MPG combined won’t top any charts, but the 2023 BMW X5 xDrive40i isn’t designed solely for fuel conservation. It’s for drivers who want a mix of performance, luxury, and everyday usability, and the inline-six engine delivers on this promise. This SUV suits working professionals, families with older kids, and anyone who values a well-engineered vehicle that performs equally well on twisty roads and long highway trips. Fuel efficiency matters, but capability and driving fun are the priorities.

City and highway performance

The X5’s 21 MPG city rating reflects typical urban driving conditions with frequent stops, starts, and idling. The eight-speed automatic transmission ensures smooth acceleration, but you’ll burn some fuel to tap into the engine’s power to get up to speed. The X5 performs better on the open road, achieving 25 MPG on the highway. This is because the engine operates more efficiently at consistent speeds, with less accelerating and decelerating. The automatic transmission’s tall gearing also helps conserve fuel at higher speeds. Drivers who frequently travel on highways will appreciate the savings, as long as they avoid the urge to constantly use the passing power.

Annual fuel cost

According to EPA estimates, the annual fuel cost for the 2023 BMW X5 xDrive40i is $2,500. This number assumes 15,000 miles of driving per year, a mix of city and highway, and national average fuel prices. Keep in mind that your actual fuel costs will vary depending on your driving style, the type of fuel you use (premium is recommended), and local fuel prices. Consider $2,500 a useful benchmark when compared against other vehicles you’re considering.

Real-world expectations

While EPA ratings provide a standard comparison, real-world MPG often fluctuates. X5 xDrive40i owners often report fuel economy close to EPA estimates, but driving habits and conditions are important. Heavy acceleration, frequent short trips, and long periods of idling all reduce fuel economy. In contrast, smooth, steady driving and prioritizing highway miles can help meet or even exceed EPA ratings. Proper maintenance, specifically maintaining correct tire inflation, also helps. Before buying, check X5 MPG across all years to see if actual customer feedback matches the EPA figures.

How it compares

The X5’s fuel economy is competitive for its class. For example, the Volvo XC90 B5 AWD achieves 24 MPG combined, which is slightly better than the X5. The Mercedes-Benz GLE 350 4MATIC is rated at 22 MPG combined, a bit behind the X5. The Acura MDX with SH-AWD achieves 21 MPG combined. Among these competitors, the X5’s fuel economy strikes a good balance, especially considering its sporty handling and strong engine. These numbers matter to buyers looking at this class of vehicles because they want to save on gas but want good performance.

Tips to maximize efficiency

Take advantage of the X5’s driving modes. Selecting “Eco Pro” prioritizes fuel efficiency by adjusting throttle response, transmission shift points, and climate control settings. This mode encourages a smoother, more gradual driving style, which can cut fuel consumption, especially in city driving.

Maintain proper tire inflation. The correct tire pressure, as shown on the door jamb sticker, minimizes rolling resistance and improves fuel economy. Check your tire pressure often, mainly during seasonal temperature shifts as pressure drops in cold weather.

Avoid unnecessary idling. Today’s engines are designed to be efficient, and restarting them uses less fuel than idling for long stretches. Cut the engine if you’ll be stopped for more than a minute.

Keep up with scheduled maintenance. Regular oil changes, air filter replacements, and spark plug maintenance keep the engine running well. A well-maintained engine burns fuel more efficiently.

Plan your trips. Avoid peak traffic when possible to cut down on stop-and-go driving, which wastes gas. Combine errands into a single trip to reduce cold starts, which consume extra fuel.

The X5 xDrive40i isn’t trying to match Prius-level efficiency, but it combines performance and luxury. Buyers should recognize this and understand the compromises, accepting 23 MPG for a vehicle that excels in other areas. Check all Bmw fuel economy data to see where the X5 fits.