25 MPG combined isn’t exactly the hallmark of efficiency, but for the 2023 BMW 540i xDrive Sedan, it’s a reasonable exchange for its performance, luxury, and all-weather capability. The driver of this car appreciates a smooth inline-six engine and the confidence of all-wheel drive and is willing to pay a bit more at the pump for the experience.

City and highway performance

The EPA estimates 22 MPG in the city and 29 MPG on the highway. The city figure reflects stop-and-go traffic where even well-engineered engines can struggle to maintain optimal efficiency. The highway number is more optimistic, highlighting the 540i’s ability to cruise comfortably and efficiently at higher speeds. BMW’s engineers have optimized the engine and transmission for steady-state driving. The eight-speed automatic transmission plays a critical role by keeping the engine in its sweet spot for both performance and economy, making longer journeys easier on your wallet.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,300 for the 2023 BMW 540i xDrive. This is based on driving 15,000 miles per year, with a mix of city and highway driving, and using the national average fuel price at the time of calculation. Remember that your actual fuel costs may vary depending on your driving habits, the type of fuel, and local fuel prices. Aggressive driving, frequent short trips, and opting for premium fuel can all increase your annual fuel expenditure beyond this estimate. It’s a useful benchmark, but not a guaranteed outcome.

Real-world expectations

The EPA provides standardized estimates, but real-world MPG often deviates. Expect to see figures fluctuating somewhat below or above the official numbers, depending on your personal driving style and typical routes. Drivers who prioritize smooth acceleration and consistent speeds will likely get closer to the EPA’s highway estimate, while those who enjoy using the engine’s power will see their fuel economy dip closer to, or even below, the city rating. Factors like tire pressure, ambient temperature, and the use of accessories like air conditioning can all impact fuel consumption. It’s always wise to track your mileage and fuel purchases to get a more accurate picture of your 540I MPG across all years.

How it compares

The 2023 BMW 540i xDrive exists in a competitive segment. The Mercedes-Benz E450 4MATIC shares a similar goal of blending luxury and performance and has EPA estimates of 23 MPG combined. An Audi A6 55 TFSI is EPA-rated at 24 MPG combined, while a Genesis G80 3.5T AWD comes in at 20 MPG. The 540i’s MPG isn’t exceptional for the class, but it isn’t a major outlier. For the buyer considering these vehicles, the fuel economy difference may be less important than styling, brand image, and driving experience, areas where the 540i often excels. To see all Bmw fuel economy data, visit our BMW make page.

Tips to maximize efficiency

Take advantage of the Driving Experience Control modes. The 540i xDrive offers driving modes, including an “Eco Pro” mode that optimizes the car’s systems for maximum fuel efficiency. Selecting this mode can reduce fuel consumption, especially during city driving, by adjusting throttle response, shift points, and climate control settings. Conversely, “Sport” mode will emphasize performance at the expense of fuel economy.

Pay attention to your tires. Ensuring that your tires are properly inflated is important for optimal fuel economy. Underinflated tires create increased rolling resistance, forcing the engine to work harder and burn more fuel. Check your tire pressure regularly and inflate them to the recommended levels which you can find on the sticker located on the driver’s side doorjamb.

Avoid aggressive driving habits. Rapid acceleration and hard braking are major contributors to poor fuel economy. Adopt a smoother, more progressive driving style, anticipating traffic flow and avoiding sudden stops. Gentle acceleration and consistent speeds will not only save fuel but improve the overall driving experience.

Minimize idling. Letting your engine idle for extended periods consumes fuel without covering any distance. If you’re stopped for more than a minute or two, it’s generally more efficient to turn off the engine, particularly in modern vehicles with efficient starting systems. This is especially relevant in the 540i, where idling burns premium fuel unnecessarily.

Consider using cruise control on the highway. Once you’re up to speed on the highway, use cruise control to maintain a consistent speed. This can help prevent unnecessary fluctuations in throttle input, leading to better fuel economy. Be sure to remain vigilant and adjust your speed as needed to maintain a safe following distance.