| Engine | 3.0L 6-cyl |
| Transmission | Automatic (S8) |
| Drive | All-Wheel Drive |
| Fuel Type | Premium Gasoline |
| Vehicle Class | Subcompact Cars |
| Engine Desc | SIDI |
| Start-Stop | Yes |
| EPA Vehicle ID | 43825 |
23 MPG combined isn’t the main reason someone buys the 2022 BMW 840i xDrive Coupe. This car isn’t bought to save fuel. It’s a statement, a grand tourer designed for effortless cross-country trips and making an entrance. 840i buyers typically want performance, style, and the BMW name more than saving money on gas. However, 23 MPG is still a number to think about.
City and highway performance
The EPA estimates the 840i xDrive Coupe gets 20 MPG in the city and 27 MPG on the highway. The highway number shows how relaxed the car is at cruising speeds. The smooth 8-speed automatic transmission keeps the engine at its best, which helps with fuel efficiency on the highway. Inevitably, city driving with stop-and-go traffic lowers fuel economy, a common thing for performance vehicles. The xDrive all-wheel-drive system improves traction and stability and adds weight, which affects fuel consumption, especially in cities.
Annual fuel cost
The EPA estimates the annual fuel cost for the 2022 BMW 840i xDrive Coupe at $2,500. This is based on driving 15,000 miles per year, using the national average premium gasoline price at the time of testing. Your actual fuel costs will vary. Factors like driving style, traffic, the type of fuel, and even tire pressure will change your experience. Someone driving mostly in heavy city traffic and accelerating quickly will likely spend more than $2,500 per year. Someone taking long highway trips at a consistent speed may spend less.
Real-world expectations
The EPA estimates give a starting point, but real-world fuel economy often differs. Drivers who enjoy the 840i’s strong 3.0-liter turbocharged inline-six engine will probably enjoy its performance. The combined MPG will change based on how often you use the engine’s power. Some drivers have reported averaging slightly above the EPA’s 23 MPG in mixed driving. Others see figures closer to 20 MPG or lower. Weather affects fuel efficiency. Cold temperatures can lower fuel economy because the engine takes longer to warm up. There’s a lot of variance across all 840I MPG across all years.
How it compares
The 840i’s fuel economy puts it in a specific part of the luxury performance coupe market. The Mercedes-Benz C300 Coupe, with less power, gets about 28 MPG combined. The Porsche 911 Carrera, a performance competitor, gets about 21 MPG combined. This makes the 840i a slightly more efficient choice at that price. The Lexus RC 350 F Sport delivers about 22 MPG combined. This shows the 840i offers a mix of performance and good efficiency for those wanting a premium driving experience without terrible fuel economy. For buyers concerned about fuel efficiency across the entire manufacturer, all Bmw fuel economy data is readily available.
Tips to maximize efficiency
Use the BMW’s driving modes in a smart way. The Eco Pro mode changes engine and transmission settings to maximize fuel efficiency. This does reduce performance a little, but it works well for long highway drives or when you don’t need to drive fast. Try it to find what works for you.
Keep your tires inflated. Under-inflated tires increase rolling resistance, which lowers fuel economy. Check your tire pressures regularly and inflate them to the recommended levels. You can find these levels on a sticker inside the driver’s side door or in the owner’s manual.
Avoid idling too much. Modern engines work well when moving. Idling for a long time wastes fuel. If you’ll be sitting still for more than a minute or two, turn off the engine.
Watch traffic and drive smoothly. Avoid accelerating and braking hard, which uses more fuel. Keeping a steady speed and predicting traffic can improve your fuel efficiency a lot.
Follow the service schedule. Regular maintenance, like oil changes, air filter replacements, and spark plug replacements, keeps your engine working at its best, leading to better fuel economy. Following the manufacturer’s service schedule is critical.