25 MPG combined is not the headline figure that sways a buyer considering the 2022 BMW 840i Gran Coupe 3.0L 6-cyl. This isn’t a vehicle concerned with ultimate efficiency; it’s a statement piece, a four-door coupe designed for those who prioritize style, performance, and a luxurious driving experience. Fuel costs are secondary to the pleasure of driving a well-engineered machine with a potent inline-six engine.

City and highway performance

The EPA estimates the 840i Gran Coupe at 22 MPG in the city and 29 MPG on the highway. The city number reflects stop-and-go traffic where the engine spends more time idling or accelerating from a standstill, situations less ideal for fuel efficiency. The highway figure, however, shows the 840i’s potential when cruising at a consistent speed. The smooth-shifting 8-speed automatic transmission aids in achieving this highway number, allowing the engine to settle into a more efficient RPM range. For drivers who frequently embark on long road trips, the 840i can deliver respectable economy when driven with a measured foot.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2022 BMW 840i Gran Coupe is $2,300. This figure is based on driving 15,000 miles per year and using the national average fuel price at the time of calculation. The actual cost will vary depending on individual driving habits and local fuel prices, which can fluctuate considerably. Treat this figure as a benchmark for comparison rather than an absolute prediction of your expenses.

Real-world expectations

While the EPA figures provide a standardized baseline, real-world MPG for the 840i Gran Coupe will likely vary. Aggressive driving, frequent use of the sport mode, and extended idling will all decrease fuel economy. Gentle acceleration, consistent highway speeds, and proactive anticipation of traffic flow can help drivers approach or even exceed the EPA estimates. Some drivers report figures slightly below the combined 25 MPG, but careful owners can get closer to or even beat the EPA’s highway rating. Check out 840I MPG across all years to see how current owners are performing.

How it compares

The 840i Gran Coupe exists in a niche segment, competing with other luxury four-door coupes that prioritize style and performance over outright efficiency. The Porsche Panamera, for example, in its base trim achieves around 21 MPG combined, making the 840i comparatively more efficient. The Mercedes-Benz CLS 450, another stylish competitor, posts an EPA combined rating of 25 MPG, right on par with the 840i. The Audi A7 also lands around 25 MPG combined. These comparisons are important for buyers who may be cross-shopping and want to see how this machine stacks up versus its rivals. See all Bmw fuel economy data to compare the whole brand.

Tips to maximize efficiency

Take advantage of the 8-speed automatic transmission by allowing it to shift smoothly and avoid aggressive acceleration. The transmission is designed to optimize fuel efficiency at various speeds, so let it do its job without constant manual overrides. Using cruise control on the highway can also help maintain a consistent speed and reduce unnecessary fuel consumption.

Be mindful of tire pressure. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Check your tire pressure regularly and inflate them to the recommended level specified on the doorjamb sticker. This small step can have a noticeable impact on fuel efficiency over time.

Limit idling time. Even though the 840i Gran Coupe doesn’t have start/stop tech standard (the M850i does), extended idling consumes fuel without moving the vehicle. If you anticipate being stationary for more than a minute, consider turning off the engine. This is especially pertinent in city driving, where stoplights are common.

Minimize the use of accessories that put a strain on the engine. Features like air conditioning, especially at maximum settings, and heated seats can increase fuel consumption. Use these features carefully and only when necessary to maximize efficiency.

Consider a less aggressive driving style. While the temptation to unleash the 840i’s inline-six is understandable, adopting a smoother and more controlled approach to driving can significantly improve fuel economy. Avoid sudden acceleration and hard braking, and anticipate traffic flow to maintain a more consistent speed.