The 2021 BMW X5 sDrive40i gets 23 MPG combined, a respectable figure that’s not class-leading. This luxury SUV emphasizes driving experience and premium features over maximizing fuel efficiency. The X5 sDrive40i attracts buyers who appreciate BMW’s performance, comfort, and technology, and who aren’t overly concerned with getting the most miles per gallon.

City and highway performance

The EPA estimates the X5 sDrive40i achieves 21 MPG in the city and 26 MPG on the highway. The difference reflects urban versus open-road driving conditions. The city number accounts for frequent stops, acceleration from standstill, and idling, all of which decrease fuel consumption. The higher highway figure reflects consistent speeds, less braking, and the engine operating more efficiently. The smooth-shifting 8-speed automatic transmission helps optimize fuel economy in both situations. While 26 MPG on the highway is reasonable, some competitors offer better highway fuel economy, especially those with hybrid powertrains.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 BMW X5 sDrive40i is $2,500. This is based on driving 15,000 miles per year and using the national average fuel price for premium gasoline, which BMW recommends for best performance. This is an estimate, and your actual fuel costs will vary depending on your driving habits, city versus highway driving, and local fuel prices. If you drive more or less than 15,000 miles per year, adjust the estimate. For instance, someone driving 7,500 miles annually might pay closer to $1,250 per year on fuel.

Real-world expectations

The EPA figures provide a benchmark, but real-world fuel economy can vary. Factors such as driving style, traffic, weather, and even tire pressure can influence your MPG. Drivers who accelerate quickly or enjoy the inline-six engine’s power will likely see numbers below the EPA estimates. On the other hand, those who prioritize fuel economy and drive conservatively may match or slightly exceed the EPA figures. Cold weather driving typically lowers fuel economy because the engine takes longer to warm up.

How it compares

Compared to its competitors, the 2021 BMW X5 sDrive40i’s fuel economy is competitive, but not exceptional. The Mercedes-Benz GLE 350, another popular luxury SUV, achieves similar figures of around 20 MPG city and 25 MPG highway. The Acura MDX, particularly in its non-hybrid form, also achieves similar numbers. However, some competitors offer more fuel-efficient options. For example, the Lexus RX 450h, a hybrid SUV, gets significantly better fuel economy, often exceeding 30 MPG combined. Volvo’s XC90 Recharge plug-in hybrid also offers superior fuel economy, though it has a higher initial price. For buyers who prioritize fuel efficiency, these alternatives may be more appealing. The X5, however, offers sharper handling, more engaging driving dynamics, and the brand’s distinct character, a key decision point for many buyers. See X5 MPG across all years.

Tips to maximize efficiency

One of the simplest ways to improve fuel economy in the X5 sDrive40i is to drive smoothly. Avoid quick acceleration and braking, anticipating traffic flow and maintaining a consistent speed. Aggressive driving reduces fuel efficiency, especially in city driving.

Proper tire inflation is also critical. Underinflated tires increase rolling resistance, making the engine work harder and use more fuel. Check your tire pressure regularly and inflate them to the recommended levels, found on a sticker inside the driver’s side doorjamb.

Consider using the X5’s ECO PRO driving mode, if equipped. This mode adjusts vehicle settings to prioritize fuel efficiency by changing throttle response and shift patterns. This can lead to fuel savings, especially on longer trips.

Regular maintenance is essential for optimal engine performance and fuel efficiency. Keep the engine tuned and ensure the air filter is clean. A clogged air filter restricts airflow, causing the engine to work harder and use more fuel. Be sure to explore all Bmw fuel economy data too.

Minimize unnecessary weight in the vehicle. Extra cargo adds to the vehicle’s weight, reducing fuel efficiency. Remove any items you don’t need, and consider removing the roof rack when it’s not in use.