15 MPG combined. Let’s address that immediately. The 2020 BMW X6 M isn’t about saving fuel, it’s about unapologetic performance and a bold statement. This isn’t transportation for those afraid of high fuel costs, nor is it for those on a tight budget. It’s for those who prioritize a 600-horsepower V8 nestled within a coupe-like SUV body that commands attention, and who are willing to pay the price at the pump.

City and highway performance

The X6 M’s EPA ratings break down to 13 MPG in the city and 18 MPG on the highway. The city figure is probably the more relevant number for most X6 M owners. This vehicle is built for quick bursts of acceleration, carving through traffic, and making its presence known. Highway driving, while marginally better in terms of fuel consumption, is still far from frugal. The powerful V8 and standard all-wheel-drive system demand their share, even at cruising speeds. The eight-speed automatic transmission, while generally smooth and responsive, is tuned for performance above all else, meaning it favors lower gears and quicker downshifts, impacting overall fuel economy.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2020 BMW X6 M is $3,850. That figure is based on driving 15,000 miles per year and assumes current national average fuel prices. Considering the X6 M requires premium fuel, that cost can fluctuate quite a bit depending on location and driving habits. If you’re primarily doing short trips and exploiting the engine’s capabilities, expect to spend even more. It’s a significant investment, and potential buyers should be fully aware of it before signing.

Real-world expectations

The EPA estimates offer a baseline, but real-world fuel economy with an X6 M is highly dependent on driving style. If you’re constantly pressing the accelerator and enjoying the engine’s sound, expect to see numbers even lower than the official ratings. However, if you drive more conservatively and spend more time on the highway, you might get the MPG closer to the EPA estimates, but don’t expect miracles. The X6 M’s weight, powerful engine, and permanent all-wheel-drive system affect fuel efficiency.

How it compares

The X6 M exists in a rarified segment of high-performance SUVs, but comparisons are inevitable. The Mercedes-AMG GLE 63 S Coupe, for example, offers similar performance and a comparable combined MPG in the range of 15 MPG. The Lamborghini Urus, despite its even greater power output and higher price, achieves around 14 MPG combined. Even within BMW’s own lineup, a comparison to the more traditionally shaped X5 M is relevant. The X5 M, sharing the same engine and drivetrain, posts near-identical fuel economy figures. Ultimately, the choice comes down to styling and personal preference, not fuel savings. For more information on BMW’s lineup, you can find all Bmw fuel economy data on our site. Plus, you can compare X6 MPG across all years.

Tips to maximize efficiency

While the X6 M is not fuel-efficient, here are a few strategies to reduce consumption. Avoid accelerating and braking hard. The more you push the engine, the more fuel it consumes. A smooth pace will make a noticeable difference.

Use the X6 M’s driving modes. “Comfort” or “Eco Pro” modes will reduce throttle response and encourage earlier upshifts, promoting better fuel economy during normal driving. When you don’t need all 600 horsepower, let the car manage its resources efficiently.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, which hurts fuel economy. Check your tire pressure regularly and maintain the levels specified on the doorjamb sticker.

Reduce unnecessary weight. Carrying extra cargo adds to the load the engine, and more fuel consumption takes place. Leaving unnecessary items in the garage helps.