23 MPG combined in the 2021 BMW X6 xDrive40i won’t win any awards, but it also isn’t a deal-breaker for the buyer who chooses coupe-like styling over outright practicality. This isn’t a vehicle purchased for hyper-miling; it’s a statement. It’s about having a powerful, stylish, and luxurious vehicle that turns heads, even if it means a few extra stops at the gas station. Performance and presence are valued over pinching pennies.

City and highway performance

The EPA estimates for the 2021 X6 xDrive40i put city driving at 21 MPG and highway cruising at 25 MPG. That spread of just 4 MPG reflects the generally well-rounded nature of BMW’s turbocharged six-cylinder engine. While city driving inevitably involves more stop-and-go, negating turbocharger efficiency, the highway figure demonstrates the engine’s ability to deliver respectable fuel economy when cruising at consistent speeds. Most X6 owners will likely see fuel economy closer to the city figure because this vehicle shines brightest on short trips and making a statement around town.

Annual fuel cost

According to the EPA, the annual fuel cost for the 2021 BMW X6 xDrive40i is estimated at $2,500. This figure is based on driving 15,000 miles per year and using national average fuel prices. This is an important figure to consider alongside the vehicle’s purchase price, as it represents the ongoing cost of ownership. While the $2,500 annual fuel bill might be shrugged off by the target demographic, this is significantly higher than many other SUVs on the market, including some with comparable interior space.

Real-world expectations

While the EPA estimates provide a useful benchmark, real-world fuel economy can vary depending on driving habits, traffic conditions, and even the weather. Aggressive acceleration, frequent hard braking, and prolonged idling will all negatively impact fuel consumption. Likewise, driving in cold weather can reduce fuel efficiency as the engine takes longer to reach its optimal operating temperature. Don’t expect to consistently achieve the EPA’s highway figure if your daily commute involves heavy traffic or spirited driving. It’s always best to manage your expectations and be prepared for slightly lower numbers.

How it compares

The X6’s fuel economy must be viewed relative to its rivals. The Mercedes-Benz GLE 450 Coupe, equipped with a similar turbocharged six-cylinder, achieves a nearly identical 22 MPG combined. The Audi Q8, offering a more traditional SUV shape but comparable performance, also lands in a similar ballpark at 23 MPG combined. Even the Porsche Cayenne Coupe, leaning even further into the sporting angle, matches the X6 at 21 MPG combined. Stepping down to a more mainstream SUV like the Lexus RX 350 improves fuel economy considerably, up to 23 MPG city and 30 MPG highway, but at the expense of performance and brand cachet. For someone considering the X6, those are not tradeoffs that are relevant. Reviewing all Bmw fuel economy data reveals similar trends across the brand’s lineup – a balance between performance and relative efficiency, with an emphasis on performance for vehicles like the X6.

Tips to maximize efficiency

Take advantage of the X6’s driving modes. Selecting “Eco Pro” mode can noticeably improve fuel economy by optimizing engine and transmission settings for efficiency. The system reduces throttle sensitivity and adjusts shift points to keep the engine operating in its most efficient range. It’s a simple way to make improvements, especially during longer highway drives.

Maintain proper tire inflation. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Check your tire pressure regularly and inflate them to the recommended pressure specified on the doorjamb sticker. Tire pressure monitoring systems are commonly featured and ensure awareness, even on short trips.

Avoid unnecessary idling. Modern engines are designed to be efficient when running. Prolonged idling wastes fuel and contributes to increased emissions. If you’re stopped for more than a minute or two, it’s generally more efficient to turn off the engine. The X6’s smooth and responsive automatic start/stop system makes short stops effortless, too.

Minimize your cargo and roof rack usage. Extra weight increases fuel consumption, so remove any unnecessary items from your vehicle. After you load up for ski trips, remember to remove the ski rack from the roof, as it impacts aerodynamics and reduces fuel economy. Every bit counts when trying to squeeze out extra mileage. If you’re intensely concerned with X6 MPG across all years and configurations, you are probably driving the wrong car.