24 MPG combined won’t set any fuel-sipping records, but it’s a perfectly acceptable figure for the 2017 BMW 540i. This isn’t a hybrid, nor is it meant to be. The 540i delivers a blend of performance, luxury, and technology that appeals to a buyer who prioritizes driving feel and a refined experience over outright fuel efficiency. This person likely values the smooth power delivery of the turbocharged inline-six and the car’s overall athleticism far more than saving a few dollars at the pump.

City and highway performance

The EPA estimates for the 2017 540i stand at 20 MPG in the city and 30 MPG on the highway. The 20 MPG city figure reflects the stop-and-go driving conditions that will naturally lower fuel economy, even with features like start/stop. However, the 30 MPG highway rating showcases the engine’s ability to cruise efficiently at higher speeds, aided by the smooth-shifting eight-speed automatic transmission (S8). The 540i’s highway performance is considerably better than its city MPG, reflecting its character as comfortable long-distance cruiser. These ratings reflect the powertrain’s state of tune, which emphasizes power and responsiveness over maximizing every last drop of fuel.

Annual fuel cost

The EPA calculates the annual fuel cost for the 2017 BMW 540i at exactly $2,400. This figure is based on driving 15,000 miles per year, using national average fuel prices. It’s a useful benchmark, but remember that your actual fuel costs will vary based on your driving habits, the type of fuel you use, and local fuel prices. If you primarily drive in the city and have a heavy foot, expect to spend more. Conversely, if you do a lot of highway driving and practice fuel-efficient driving techniques, you might get away with spending less. The 540i requires premium fuel, which is why the annual fuel cost appears elevated when compared to more efficiency-minded vehicles.

Real-world expectations

While the EPA estimates provide a standardized comparison, real-world fuel economy often differs. 540i owners commonly report figures that are in line with, or slightly below, the EPA estimates, depending on their driving style and environment. Aggressive acceleration, frequent short trips, and heavy traffic will all negatively impact fuel economy. Conversely, smooth, consistent driving at moderate speeds can often deliver fuel economy that matches or even exceeds the highway rating. Remember, the 540i is a performance-oriented machine; its fuel economy is directly tied to how it’s driven. Those who take advantage of the engine’s power and torque will inevitably see lower MPG numbers.

How it compares

The 2017 BMW 540i sits in a competitive segment. Rivals offering similar luxury and performance include the Mercedes-Benz E400 (around 23 MPG combined), the Audi A6 3.0T (also around 24 MPG combined), and the Lexus GS 350 (rated around 23 MPG combined). These are all within the same ballpark, reflecting a common compromise between performance and efficiency in this class. A prospective buyer would consider that while the Acura RLX Sport Hybrid achieves nearly 30 MPG combined, its driving experience is radically different – less power and less athletic.

To explore all Bmw fuel economy data, one can see where the 540i falls amongst its siblings. Comparing 540I MPG across all years shows an interesting progression over time, where one can observe subtle improvements made from year to year, as BMW optimized the powertrain. The numbers ultimately reflect the type of customer buying this car and prioritizing power and driving dynamics over squeezing out every last fraction of MPG.

Tips to maximize efficiency

Avoid aggressive acceleration and braking. The 540i’s engine is responsive, but frequent bursts of speed will quickly drain the fuel tank. Practice smooth, gradual acceleration and anticipate traffic flow to minimize unnecessary braking. Using the “Eco Pro” driving mode can help promote more fuel efficient driving habits. This mode adjusts the engine mapping, transmission shift points, and throttle response to prioritize fuel economy over ultimate performance.

Maintain proper tire inflation. Under-inflated tires increase rolling resistance, which reduces fuel economy. Check your tire pressure regularly and inflate them to the recommended levels. The correct tire pressure information can be found on a sticker located on the driver’s side doorjamb or in the owner’s manual.

Minimize idling. Idling consumes fuel without covering any distance. If you’re stopped for more than a minute or two, turn off the engine. The 540i is equipped with an automatic start/stop system, which is designed to automatically shut off the engine at stoplights and other brief stops. However, it can be deactivated if preferred.

Consider weight reduction. Remove any unnecessary items from the trunk or cabin. Extra weight increases the engine’s workload, reducing fuel economy. A lighter car is also a more nimble car, improving the overall driving experience.