22 MPG combined is fuel economy that most 7 Series buyers likely consider acceptable but not particularly impressive. The 2015 BMW 740Li with its 3.0L inline-six isn’t purchased for its frugality; it’s acquired for its combination of comfort, performance, and status. These buyers prioritize a smooth, powerful driving experience and a luxurious cabin, often chauffeured or carrying passengers in the rear, with fuel costs a secondary consideration.

City and highway performance

The EPA estimates for the 2015 740Li are 19 MPG in the city and 28 MPG on the highway. That difference is because urban environments require constant acceleration and deceleration, minimizing the engine’s ability to operate at its most efficient range. The highway figure displays the potential of the turbocharged inline-six and smooth-shifting eight-speed automatic transmission when cruising at a steady speed. Drivers who rack up significant highway miles will see fuel consumption closer to the 28 MPG figure, while those confined to city streets will find themselves nearer to 19 MPG.

Annual fuel cost

According to the EPA, the annual fuel cost for the 2015 BMW 740Li is $2,650. This figure is based on driving 15,000 miles per year and using the national average fuel price at the time the EPA testing was conducted. It’s a useful number for comparison, but individual fuel costs will vary based on driving habits, local gas prices, and the type of fuel used. Some drivers may spend more than estimated by the EPA, and others less, depending on their specific circumstances and how diligently they try to optimize their fuel economy.

Real-world expectations

While EPA figures provide a standardized benchmark, real-world fuel economy often shifts based on individual driving habits and external factors. Aggressive acceleration, frequent hard braking, and extended idling can easily reduce your MPG, particularly in a heavy sedan like the 740Li. Conversely, adopting a more measured driving style, anticipating traffic flow, and ensuring proper tire inflation can help you achieve figures closer to the EPA estimates, or perhaps even slightly exceed them. The 740Li’s onboard computer provides real-time and average MPG readouts, enabling drivers to monitor their progress and adjust their habits to improve efficiency. For a deeper dive, explore 740LI MPG across all years.

How it compares

The 2015 7 Series competed against other large luxury sedans like the Mercedes-Benz S550, Audi A8, and Lexus LS 460. The Mercedes S550, with its V8 engine, typically returned combined figures in the 20 MPG range. The Audi A8, also with available V8 and supercharged V6 engines, achieved similar results. The Lexus LS 460 hovered in the same ballpark, with a combined MPG figure of around 19 MPG. Buyers in this segment often cross-shop all of these models, weighing fuel economy against other factors like performance, features, and brand reputation. While all are comfortable with the reality of sub-25 MPG performance in everyday driving, they are far more interested in the interior refinement and technology than minimizing weekly gas costs. BMW fans can see all Bmw fuel economy data here.

Tips to maximize efficiency

The driving mode selector can play a role in fuel efficiency. Engaging “Eco Pro” mode will alter throttle response, gear shift points, and climate control settings to prioritize fuel conservation. While performance will be slightly reduced, it’s a viable approach for maximizing MPG, especially during long highway drives.

Ensure that your tires are properly inflated to the recommended pressure, found on the sticker inside the driver’s side doorjamb. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Regularly checking tire pressure guarantees optimum efficiency.

Avoid aggressive acceleration and hard braking. Smooth, gradual driving minimizes fuel consumption by keeping the engine in its most efficient range. Anticipate traffic flow and maintain a consistent speed whenever possible.

Reduce unnecessary weight in the vehicle. Carrying extra items in the trunk adds to the overall weight, increasing the load on the engine and impacting fuel economy. Clear out any unnecessary cargo to minimize fuel consumption.

Pay attention to the maintenance schedule. Regular oil changes, air filter replacements, and spark plug maintenance ensure that the engine is operating at peak efficiency. A well-maintained engine consumes less fuel than one that is neglected.