The 2020 BMW X7 xDrive40i achieves 22 MPG combined fuel economy. This isn’t the highest number, but it probably won’t deter the typical X7 buyer. People buy this vehicle for its size, presence, luxury, and driving experience, not primarily because it saves gas. Owners prioritize space for their large families, impressive performance, and the BMW brand. They appreciate reasonable fuel consumption, but other considerations rank higher.

City and highway performance

The X7 xDrive40i is EPA-rated for 20 MPG in the city and 25 MPG on the highway. The city figure reflects urban driving’s stop-and-go conditions, where the X7’s weight reduces efficiency. The smooth and responsive 3.0L turbocharged inline-six engine, paired with the 8-speed automatic transmission (S8), helps make the most of each gallon. On the highway, the X7 cruises more efficiently, benefiting from the transmission’s tall gearing and the engine’s ability to deliver torque at lower RPM. These figures are estimates and can vary based on driving style and conditions.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2020 BMW X7 xDrive40i at $2,650. This is based on driving 15,000 miles per year and using the national average fuel prices. Actual fuel costs will vary based on driving habits, local fuel prices, and fuel grade. The X7 requires premium gasoline, which adds to the overall expense.

Real-world expectations

While the EPA estimates are a good starting point, real-world fuel economy often differs. Expect to see figures that fluctuate depending on driving style, the terrain, and city versus highway driving. More aggressive driving, frequent acceleration, and consistently high speeds will negatively impact fuel economy. Smoother driving habits and more highway miles can help you achieve figures closer to the EPA estimates. Owners reporting their own data on sites like Fuelly.com can show a wider view of X7 MPG across all years.

How it compares

The X7’s fuel economy is in the middle of its class. The Mercedes-Benz GLS 450, with its similarly sized turbocharged inline-six, delivers roughly equivalent fuel economy at 20 MPG combined. The Cadillac Escalade, with its larger V8 engine, typically achieves around 17 MPG combined, highlighting the BMW’s fuel efficiency with its smaller, turbocharged unit. The Volvo XC90 T6, while smaller and lighter, manages around 23 MPG combined, demonstrating the advantage of its smaller, four-cylinder engine and hybrid assistance available on some trims. Buyers cross-shopping these vehicles will likely weigh these MPG differences against luxury features, passenger space, and driving dynamics to determine which SUV best fits their needs. For a look at all Bmw fuel economy data, check this BMW brand overview.

Tips to maximize efficiency

Given the X7’s size and weight, smooth and steady driving is key. Avoid aggressive acceleration and hard braking, as these consume more fuel. Anticipate traffic flow and maintain a consistent speed whenever possible.

Proper tire inflation is critical for optimal fuel economy. Check your tire pressure regularly and ensure it matches the recommended levels on the tire placard. Underinflated tires increase rolling resistance, decreasing fuel efficiency.

Minimize unnecessary weight. Carrying extra cargo adds to the vehicle’s weight, reducing fuel economy. Remove any items you don’t need from the cargo area and passenger compartment.

Use cruise control on the highway. Cruise control helps maintain a consistent speed, which can improve fuel economy on long drives. Avoid using cruise control in hilly terrain, as the system may overcompensate to maintain speed, decreasing fuel efficiency.

Service your vehicle regularly. Routine maintenance, such as oil changes, air filter replacements, and spark plug replacements, can help keep your engine running efficiently and improve fuel economy. Follow the manufacturer’s recommended maintenance schedule.