15 MPG combined. That’s the bottom line for the 2016 Mercedes-Benz AMG GLE63, packing a thunderous 5.5L V8. For those even considering this particular SUV, that number isn’t a deal-breaker. The GLE63 isn’t about sipping fuel; it’s about raw power, imposing presence, and a badge that announces your arrival with authority. Buyers aren’t cross-shopping with Prius owners; they’re seeking a unique blend of performance and practicality that few vehicles can offer, and they understand the fuel cost is the price of admission. They want the versatility of an SUV with the soul of a sports car.

City and highway performance

The EPA estimates provide a breakdown of the GLE63’s fuel consumption in different driving conditions. The city estimate of 13 MPG reflects the stop-and-go nature of urban environments, where frequent acceleration and idling take their toll. The highway figure, a slightly more palatable 17 MPG, suggests a degree of efficiency can be achieved during consistent cruising speeds. Even so, expect to see the fuel gauge drop quickly, especially if you’re tempted to exploit the V8’s prodigious torque on the open road. Reality in the city feels even lower– single digits are common if you aren’t careful.

Annual fuel cost

The EPA estimates that the annual fuel cost for the 2016 Mercedes-Benz AMG GLE63 is $3,850 per year. This figure is calculated based on driving 15,000 miles annually, using prevailing national average fuel prices. It’s a significant sum and underscores the financial implications of owning a high-performance vehicle with relatively poor fuel economy. This cost represents the expense of keeping that V8 fed and ready to unleash its considerable power, a factor potential buyers should carefully consider within their overall budget.

Real-world expectations

While the EPA estimates provide a baseline, real-world fuel economy can vary depending on driving habits, traffic conditions, and even weather. Aggressive acceleration, frequent hard braking, and extended idling will all negatively impact fuel consumption. And premium fuel is required to deliver optimal performance and efficiency. Owners who frequently engage the GLE63’s performance capabilities should anticipate fuel economy figures below the EPA estimates. Keep in mind that the thrill of that AMG-tuned V8 and exhaust note comes at a price.

How it compares

The 2016 AMG GLE 63 isn’t alone in its segment of high-performance SUVs. The BMW X5 M, for instance, delivers similar performance with an EPA-estimated 16 MPG combined. The Range Rover Sport SVR boasts its own supercharged V8 and a roughly equivalent 15 MPG combined. Even the Porsche Cayenne Turbo S, known for its performance pedigree, sits in roughly the same ballpark at 17 MPG combined. These slight differences aren’t likely to sway buyers decisively; they recognize that this class of vehicle prioritizes power and driving dynamics over outright fuel efficiency. For those seeking much better mileage, browsing all Mercedes Benz fuel economy data is a good idea, or AMG MPG across all years provides insight into their range-topping trims.

Tips to maximize efficiency

Adopt a smoother driving style. Avoid aggressive acceleration and hard braking whenever possible. The GLE63 is equipped with enough power to easily maintain speed, even on inclines, so there’s usually no need to aggressively mash the throttle unless you’re intentionally doing so. Gentle inputs will help to reduce fuel consumption, even if only marginally.

Maintain proper tire inflation. Underinflated tires increase rolling resistance, which in turn reduces fuel economy. Check tire pressures regularly and inflate them to the recommended levels, found on the door jamb sticker. Considering the GLE63’s weight and power, proper tire maintenance is also a safety consideration.

Limit idling. Excessive idling wastes fuel unnecessarily. If you anticipate stopping for more than a minute, it’s best to simply turn off the engine. Start-stop functionality can help in some conditions, though its effectiveness isn’t a reason to let it run unnecessarily, however if you are in need of serious acceleration though, it will always be more efficient to leave the engine running.

Reduce unnecessary weight. Carrying excess cargo in the GLE63 increases its overall weight, which reduces fuel economy. Remove any items from the vehicle that are not essential, such as sports equipment or tools, to minimize the burden on the engine. This car has excellent storage for those that need it, but removing extraneous weight isn’t a bad strategy.

Minimize aerodynamic drag. While the GLE63 isn’t exactly known for its slippery shape, removing roof racks or cargo carriers when not in use can help to reduce aerodynamic drag and improve fuel economy. Even closing the windows at higher speeds can contribute to a slight improvement.