24 MPG combined won’t impress everyone. But for the 2023 BMW 840i xDrive Coupe, it’s a reasonable trade-off for buyers who want elegant design, strong performance, and all-weather confidence more than extreme fuel efficiency. Very few people buy an 8 Series Coupe just to save gas, and BMW knows that.

City and highway performance

The 840i xDrive Coupe gets an EPA-estimated 21 MPG in the city and 29 MPG on the highway. That highway number is respectable. It reflects the efficiency of BMW’s turbocharged inline-six engine and the smooth-shifting eight-speed automatic transmission. The engine’s broad torque also allows for easy cruising at higher speeds, which reduces the need to downshift and improves fuel economy. EPA estimates are based on controlled testing, but most owners will likely see better than 21 MPG in the city.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2023 BMW 840i xDrive Coupe to be $2,400. The estimate assumes 15,000 miles per year and uses the national average fuel price at the time of calculation. Your actual fuel costs will change depending on your driving, the type of fuel you use (premium is recommended), and local fuel prices. Assume $2,400 as a starting point for your budget.

Real-world expectations

While the EPA estimates are a helpful guide, real-world fuel economy often varies. Aggressive driving, frequent short trips, and long periods of idling can significantly hurt fuel efficiency. However, drivers who accelerate smoothly, keep a steady speed on the highway, and use the car’s Eco Pro mode can often get numbers close to, or even better than, the EPA estimates. Check the car’s MPG gauge regularly to understand your fuel costs. You can also check 840I MPG across all years to compare ratings.

How it compares

The 840i xDrive’s fuel economy is competitive among luxury coupes. The Mercedes-Benz C300 Coupe, for example, is smaller and less powerful but gets a combined 28 MPG. The Mercedes-AMG C43 Coupe, a closer performance competitor, gets around 22 MPG combined. The Lexus RC 350, another option, gets a combined 23 MPG. A Porsche Macan S, outside the coupe segment, returns around 19 MPG combined. The differences might seem small. Consider what’s most important to you. Buyers who appreciate the 840i’s grand touring character may find the slight fuel economy difference acceptable given its style, power, and all-wheel-drive. Review all Bmw fuel economy data to see the 840i within the broader model context.

Tips to maximize efficiency

Keep your tire pressure correct. The 840i’s tires affect its rolling resistance. Inflate them to the pressure on the doorjamb sticker to improve fuel economy. Checking and adjusting regularly, especially with seasonal temperature changes, will help maintain efficiency.

The Eco Pro mode can improve fuel consumption, mainly in city driving, even though it reduces throttle response slightly. Anticipate traffic and let the car coast when you can. That will reduce acceleration and braking, saving gas.

Do not carry extra weight. Extra weight in the trunk or backseat will reduce fuel efficiency, a little bit. Remove items you do not regularly need to lighten the vehicle and improve MPG. Even little additions add up.

Avoid driving aggressively. Driving smoothly will help the most to save on fuel costs. Avoid accelerating quickly from stops, and look ahead to anticipate traffic lights and stop signs to reduce harsh braking. The inline-six’s strong power delivery means you don’t need to bury your foot in the accelerator to maintain a brisk pace.