23 MPG combined isn’t great for most modern vehicles, but in the 2019 BMW 340i xDrive Gran Turismo, it’s a minor concern. This car isn’t prized for saving gas; it’s a fast, luxurious, and surprisingly practical liftback for buyers who want driving experience and versatility more than fuel efficiency. These owners appreciate the 340i GT’s smooth inline-six engine, its all-weather capability, and its unique combination of sporty handling and hatchback utility, and they accept the middling fuel economy as something you get with the car.

City and highway performance

The EPA numbers are 20 MPG in the city and 29 MPG on the highway. The city figure reflects stop-and-go traffic, where the 3.0L turbocharged engine uses more fuel to accelerate the car’s considerable weight from a stop. However, the highway number is better. The 340i GT’s smooth eight-speed automatic transmission helps keep the engine at its best for efficient cruising, and the relatively aerodynamic shape lets it glide along the interstate with reasonable efficiency. Still, it’s not as efficient as some rivals.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2019 BMW 340i xDrive Gran Turismo is $2,500. This is based on driving 15,000 miles per year and using national average fuel prices. This will change depending on your driving, local fuel costs, and how much you drive in the city versus on the highway. Driving hard or often using Sport mode will increase that number, while smooth acceleration and consistent highway speeds could lower it.

Real-world expectations

EPA estimates are a useful starting point, but real-world fuel economy changes with driving style and conditions. Owners who often drive in congested cities or accelerate quickly should expect to see numbers near the 20 MPG city rating. However, those who mainly use the 340i GT for long highway trips may get close to, or even a bit better than, the 29 MPG highway figure. Checking resources for 340I MPG across all years can give you a broader understanding of what owners experience.

How it compares

The 340i GT’s fuel economy isn’t great compared to rivals. The Audi S5 Sportback, with its turbocharged V6 and quattro all-wheel drive, gets a slightly better 24 MPG combined. Even the Porsche Macan S, a performance SUV with a turbocharged V6 and all-wheel drive, manages 20 MPG city and 25 MPG highway. These comparisons show that performance and practicality can reduce fuel efficiency. Buyers must decide if the 340i GT’s specific features justify its fuel consumption, or if they’ll give up some performance or cargo space for better economy. For more on fuel efficient BMWs, you could explore all Bmw fuel economy data.

Tips to Maximize Efficiency

One easy way to save fuel in the 340i GT is to drive more smoothly. Avoid fast acceleration and hard braking, predict traffic, and keep a steady speed when you can. The turbocharged engine responds well to gentle inputs, and you can still drive fast without always using full throttle.

Try the different driving modes in the 340i GT. Sport mode gives sharper throttle response and more aggressive shifting, but Comfort or Eco Pro mode can improve fuel economy, especially on long trips. Eco Pro mode reduces throttle sensitivity and changes other vehicle settings to prioritize efficiency.

Tire pressure is important for fuel economy. Make sure your tires are inflated to the pressure on the doorjamb sticker. Low tire pressure increases rolling resistance, which lowers fuel efficiency. Checking and maintaining tire pressure is a simple way to improve mileage.

Keep the car light. Heavy items in the trunk or back seats increase fuel consumption. Remove anything you don’t need to reduce the car’s weight and improve efficiency, especially if you have winter tires and a trunk full of sandbags.