19 MPG combined won’t win any fuel efficiency awards, but it reflects the goal of the 2015 BMW 550i xDrive: strong performance with luxury. If you buy this car, you likely value a potent V8 and all-wheel drive grip, accepting the fuel consumption as part of the driving experience. It’s a choice, and probably one you’re aware of when buying the 550i xDrive.

City and highway performance

The EPA estimates for the 2015 BMW 550i xDrive are 16 MPG in the city and 24 MPG on the highway. The disparity shows how a 4.4L V8 uses more gas in stop-and-go traffic, when frequently accelerating from a standstill. The highway number is more respectable, showing the engine’s ability to achieve reasonable efficiency at a constant speed. The eight-speed automatic transmission (S8) helps here by keeping the engine in its optimal RPM range. Still, this is a powerful engine in a relatively heavy car, and fuel use will always be a factor. Drivers who spend most of their time in cities should expect fuel economy closer to the city rating, while those with longer commutes may see results closer to the highway number. Either way, the 550I MPG across all years shows you this is a consistent trend for this model.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2015 BMW 550i xDrive at $3,050. This figure is based on driving 15,000 miles per year and using the EPA’s assumed national average fuel price at the time of testing. Your personal fuel costs will vary depending on your driving habits, local fuel prices, and the type of fuel you use. This number is a benchmark for comparing the 550i xDrive’s fuel consumption with other vehicles.

Real-world expectations

While the EPA provides a standardized testing method, real-world fuel economy can vary. Aggressive driving, frequent short trips, and extreme weather can all hurt fuel efficiency. However, gentle acceleration, consistent highway speeds, and well-maintained tires can help drivers get fuel economy closer to the EPA estimates. Owners of this vehicle often care more about performance than saving money, which is why aggressive driving habits are common. If you enjoy the car’s performance, don’t expect to match the EPA numbers.

How it compares

The 2015 BMW 550i xDrive’s fuel economy is average for its class. A similarly powerful 2015 Audi S6, with its 4.0L V8, gets an EPA-estimated 17 MPG city and 27 MPG highway. A 2015 Mercedes-Benz E550 4Matic, also featuring a V8, manages around 17 MPG city and 26 MPG highway. These numbers are typical for high-performance German sedans and are very similar. People who buy this car are usually more focused on the driving experience than MPG, but these comparisons are still important. For those hoping for better fuel economy within the BMW range, it is important to consult all Bmw fuel economy data to see alternative models.

Tips to maximize efficiency

Avoid aggressive acceleration. The 550i xDrive’s V8 is powerful, but using that power frequently will hurt fuel economy. Smooth acceleration keeps the engine in its most efficient operating range and avoids unnecessary fuel use.

Maintain proper tire inflation. 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 levels, which can be found on a sticker inside the driver’s side door jamb.

Reduce unnecessary weight. Carrying extra weight in the car puts additional strain on the engine and reduces fuel efficiency. Remove any unnecessary items from the trunk and passenger compartment to lighten the load.

Consider using cruise control on the highway. Cruise control maintains speed, preventing unnecessary acceleration and deceleration. This can improve fuel economy on long highway journeys, especially on flat roads.

Ensure timely maintenance. A well-maintained engine is more efficient. Follow the manufacturer’s recommended maintenance schedule, including oil changes, air filter replacements, and spark plug replacements.