The 2021 BMW X5 xDrive40i has a combined fuel economy of 23 MPG. This number is unlikely to surprise those familiar with the large luxury SUV segment, nor is it likely to be the main reason someone chooses this particular model. The X5 xDrive40i is bought for its performance, luxury, and utility. Fuel economy is one consideration, but it’s less important than driving experience and brand appeal.

City and highway performance

The EPA estimates the X5 xDrive40i will get 21 MPG in the city and 25 MPG on the highway. These numbers are achievable, especially on longer highway trips where the smooth eight-speed automatic transmission lets the engine cruise comfortably at lower RPMs. Expect numbers closer to the EPA’s lower estimate in stop-and-go city driving. The turbocharged 3.0-liter inline-six engine provides plenty of power. Its responsiveness can tempt drivers to accelerate aggressively, which, of course, hurts fuel consumption.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 BMW X5 xDrive40i at $2,500. This is based on driving 15,000 miles a year, with a mix of city and highway driving, and using the national average fuel price. This is a good benchmark for comparing running costs across different vehicles. Individual fuel expenses will vary depending on driving habits, location, and fluctuating fuel prices. The $2,500 number indicates what to expect at the pump if you drive the X5 daily.

Real-world expectations

The EPA provides a standard estimate, but real-world fuel economy often differs. Owners of the 2021 X5 xDrive40i can expect to see numbers change based on several things. Driving style is important. Aggressive acceleration and frequent hard braking will reduce fuel efficiency. Also, carrying heavy loads or regularly towing will decrease MPG.

However, drivers who accelerate smoothly, maintain consistent speeds, and minimize unnecessary idling are more likely to meet or exceed the EPA estimates. Remember that the X5, even with all-wheel drive, is affected by winter tires on fuel economy.

How it compares

The 2021 BMW X5 xDrive40i’s fuel economy is about mid-pack compared to its competitors. For example, the Acura MDX gets 22 MPG combined with its standard front-wheel drive. The all-wheel drive version is similar to the X5’s 21 city / 25 highway EPA figures. The Mercedes-Benz GLE 350 4MATIC offers a similar driving experience and numbers that are nearly identical at 20 city / 25 highway. The Volvo XC90 B5 gets a slightly better 24 MPG combined.

To see X5 MPG across all years, it is worth understanding how the model changes affected fuel consumption. Hybrids like the Lexus RX 450h (31 MPG combined) are worth looking at for buyers who prioritize every last MPG. However, the X5’s buyers typically prioritize driving dynamics and brand image over ultimate fuel efficiency.

Tips to maximize efficiency

Effectively use the X5’s driving mode selector. The “Eco Pro” mode optimizes engine and transmission settings for maximum fuel efficiency. It reduces throttle response and encourages earlier upshifts to save fuel, especially in city driving with frequent stop-and-go traffic. Switching to comfort or sport modes will make the car more responsive but decrease fuel economy.

Make sure your tires are properly inflated. Underinflated tires increase rolling resistance, which hurts fuel economy. Check your tire pressures regularly with a reliable gauge. The correct tire pressure is on a sticker on the driver’s side door jamb. Do not exceed the maximum pressure listed on the sidewall.

Avoid unnecessary idling. Modern engines are designed to be efficient when running, but idling burns fuel without covering any distance. If you expect to be stopped for more than a minute, turn off the engine. A restart consumes only a small amount of fuel, much less than the fuel wasted by extended idling.

Remove any extra items from the trunk or cargo area, carrying unnecessary weight in your vehicle reduces fuel economy. Extra weight forces the engine to work harder, consuming more fuel. This step makes a noticeable difference especially with frequent city driving.

A well-maintained engine runs more efficiently. Following the maintenance schedule in the owner’s manual is important. This includes regular oil changes, air filter replacements, and spark plug replacements. Neglecting maintenance can lead to decreased performance and reduced fuel economy. See all Bmw fuel economy data to see trends over time.