The 2025 BMW X5 sDrive40i’s 25 MPG combined won’t win any awards for efficiency, but it’s an acceptable number for a luxury SUV with this size, power, and capability. The sDrive40i is for customers who value a refined driving experience, ample space, and the BMW badge, accepting fuel costs as part of ownership.

City and highway performance

The EPA estimates 23 MPG in the city and 27 MPG on the highway for this rear-wheel-drive X5. The city number reflects stop-and-go driving, where the 3.0L inline-six engine works harder. The highway figure shows the engine’s efficiency when cruising at a steady speed. Driven moderately, the highway figure is easily achievable, sometimes surpassable.

However, repeated acceleration on the highway will significantly lower the average.

Annual fuel cost

The EPA calculates the annual fuel cost for the 2025 BMW X5 sDrive40i at $2,300. This is based on driving 15,000 miles per year and using national average fuel prices. Your actual fuel costs may depend on how much you drive, your driving style, and local gas prices.

$2,300 serves as a benchmark for comparing this X5 model to other vehicles. This calculation assumes the use of premium fuel, which is recommended for optimal performance of the turbocharged six-cylinder engine.

Real-world expectations

While the EPA numbers provide a baseline, real-world fuel economy often differs. Expect to see figures close to the EPA estimates if you primarily drive on the highway and maintain a consistent speed. City driving, especially in congested areas, will likely result in lower MPG. The X5’s weight and performance will always impact efficiency.

Regular use of Sport mode will noticeably reduce gas mileage, but it delivers the quick response that BMW drivers want.

How it compares

The X5 sDrive40i stacks up competitively with its rivals. The Mercedes-Benz GLE 350, with its 2.0L turbo four-cylinder, delivers a similar 22 MPG combined. The Acura MDX, known for its dependability, manages around 22 MPG as well. The Volvo XC90 B5 manages slightly better fuel economy, with a 24 MPG combined rating from its turbocharged and supercharged four-cylinder engine.

For prospective buyers, these differences matter, potentially saving them hundreds of dollars at the pump each year, or solidifying their decision to prioritize luxury and performance over efficiency. For a broader view, you can find all Bmw fuel economy data on our site.

Tips to maximize efficiency

Use the X5’s driving modes. Comfort mode offers a balance of performance and efficiency, while Eco Pro mode further optimizes fuel consumption by adjusting throttle response and shift points. These modes let you prioritize fuel economy when driving conditions allow, or on long highway stretches.

Ensure your tires are properly inflated. Underinflated tires create more rolling resistance, which reduces fuel economy. Check your tire pressure regularly and maintain the recommended levels on the driver’s side doorjamb. This maintenance task can have a noticeable impact on your MPG.

Avoid aggressive driving. Rapid acceleration and hard braking consume significantly more fuel. Drive smoothly and anticipate traffic to minimize unnecessary acceleration and braking. A gentler driving style can improve your fuel economy by as much as 15-20%.

Reduce unnecessary weight. Carrying excess cargo in your X5 will reduce fuel economy. Remove items you don’t need, and consider stowing items inside rather than using a roof rack, as the latter creates aerodynamic drag.

Regular maintenance is critical. A well-maintained engine operates more efficiently. Follow the recommended maintenance schedule for your X5, including oil changes, air filter replacements, and spark plug replacements. Addressing small issues promptly can prevent them from affecting fuel economy.

The 2025 X5 sDrive40i is interesting for buyers interested in the X5, but who don’t want or need the added weight and complexity of xDrive all-wheel drive. The slightly higher fuel efficiency is a real perk, and you can always check X5 MPG across all years to see if it meets your needs.