27 MPG combined won’t win any fuel efficiency contests, but for the 2025 BMW 740i xDrive Sedan with its smooth 3.0L 6-cylinder engine, it’s a good compromise. This isn’t a car for those chasing the best gas mileage; it’s a flagship sedan crafted for drivers who demand effortless performance, cutting-edge technology, and comfort. The fuel economy is simply part of the cost, an acceptable compromise for the experience this vehicle delivers.

City and highway performance

The EPA estimates for the 740i xDrive are 24 MPG in the city and 31 MPG on the highway. The city figure reflects stop-and-go traffic, where the 7 Series’ weight and power requirements matter. However, the highway number is more impressive, showing the efficiency of the engine and eight-speed automatic transmission when cruising at a steady speed. The xDrive all-wheel-drive system adds weight, but provides stable handling in all weather conditions, a valuable feature for buyers in northern climates.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2025 BMW 740i xDrive is $2,150. This calculation is based on driving 15,000 miles per year and using national average fuel prices. Your actual fuel costs will vary depending on your driving habits, the type of roads you typically drive on, and the current cost of gasoline in your area.

Real-world expectations

EPA figures provide a benchmark, but real-world fuel economy can differ. Drivers who accelerate quickly or frequently engage the car’s Sport mode will likely see lower numbers. However, those who prioritize smooth acceleration and use the car’s Eco Pro mode, which optimizes settings for fuel efficiency, might achieve results closer to, or even slightly exceeding, the EPA estimates. The 740I MPG across all years has been relatively consistent, but driving style is always the biggest factor.

How it compares

The 740i xDrive is in a competitive segment. The Mercedes-Benz S500 4MATIC, a direct rival, is EPA-rated at 21 MPG combined, giving the BMW an advantage. The Lexus LS 500 AWD achieves a 21 MPG combined rating, which highlights the 740i’s relative efficiency. Even considering hybrid options like the Lexus LS 500h AWD, which manages 25 MPG combined, the BMW is still a strong consideration when you consider the price difference. Those wanting the best fuel economy above all else might consider other cars, but for buyers who value BMW’s driving dynamics and technology, the 740i’s fuel economy offers a reasonable trade-off. Compare all Bmw fuel economy data to see how mileage differs by model.

Tips to maximize efficiency

Take advantage of the BMW’s Eco Pro driving mode. This setting adjusts throttle response, transmission behavior, and climate control settings to improve fuel efficiency. It might make the car feel slightly less responsive, but it can make a difference, especially on longer trips.

Avoid aggressive acceleration and braking. The 740i’s powerful engine can tempt you to drive fast, but smooth inputs will improve your fuel economy. Anticipate traffic and coast when possible.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, which impacts fuel consumption. Check your tire pressure regularly and inflate them to the recommended level, which can be found on the sticker on the driver’s side doorjamb.

Minimize idling. Idling wastes fuel and contributes to emissions. If you’re stopped for more than a minute, turn off the engine. The BMW’s automatic start/stop system helps with this, shutting off the engine when you stop in certain conditions.

Consider using cruise control on the highway. Maintaining a consistent speed will reduce dramatic spikes in fuel consumption. This is useful on long freeway trips.