21 MPG combined isn’t going to win any hypermiling awards, but for the 2019 Porsche Panamera Turbo Executive 4.0L 8-cyl, it’s a perfectly acceptable figure. This isn’t a car purchased for its miserly fuel consumption. This is a land-based missile designed to shrink continents while cocooning its occupants in opulent comfort. Buyers of the Panamera Turbo Executive are likely more concerned with the speed at which they arrive than the amount of fuel consumed along the way. Even those with deep pockets appreciate knowing what to expect at the pump.

City and highway performance

The EPA estimates the Panamera Turbo Executive achieves 18 MPG in the city and 25 MPG on the highway. Those numbers reflect the inherent trade-offs of a high-performance, large-displacement engine. City driving, with its stop-and-go nature, demands frequent bursts of acceleration, tapping into the engine’s considerable power reserves. The eight-speed automatic transmission, while exceptionally smooth and responsive, still requires energy to shift gears. Conversely, highway driving allows the engine to settle into a more efficient cruising speed, using its engineering to maximize mileage at a constant velocity. The long wheelbase of the Executive model also contributes to stability and reduced drag at higher speeds, further aiding highway fuel economy.

Annual fuel cost

The EPA calculates the annual fuel cost for the 2019 Porsche Panamera Turbo Executive at precisely $2,750. This figure is based on driving 15,000 miles per year, with a predetermined mix of city and highway driving, and factoring in the national average fuel price for premium gasoline, which this car requires. It’s important to remember that your actual fuel costs may vary depending on your driving habits, local fuel prices, and the specific conditions in which you operate the vehicle. More aggressive driving will certainly increase fuel consumption, as will extended periods of idling or operating in heavy traffic. The EPA’s estimate provides a standardized benchmark for comparison purposes.

Real-world expectations

While the EPA provides valuable estimates, real-world fuel economy often diverges from those figures. A Panamera Turbo Executive owner who frequently indulges in the car’s acceleration, or who battles daily stop-and-go traffic, will likely see fuel consumption figures closer to the city rating of 18 MPG, or even slightly lower. Conversely, someone who primarily uses the car for long-distance highway cruises, driven at a consistent and moderate pace, could potentially exceed the EPA’s 25 MPG highway estimate. Driving style, traffic conditions, and even tire pressure all play a role in determining your actual MPG. Remember that the Panamera’s performance can be affected by using lower octane fuel, though it is not recommended. Keep PANAMERA MPG across all years in mind when considering your purchase.

How it compares

Compared to its competitors, the 2019 Porsche Panamera Turbo Executive finds itself in a mixed bag. The Mercedes-AMG S63 Sedan, another high-performance luxury sedan, achieves similar fuel economy figures, around 17 MPG city and 27 MPG highway, making them very competitive in this area. The BMW M760i xDrive, with its powerful V12 engine, typically returns lower MPG ratings, hovering around 13 MPG city and 20 MPG highway. Meanwhile, the Audi S8 offers figures closer to the Panamera at around 18 MPG city and 26 MPG highway. Buyers in this segment understand the performance compromise, but the closer the fuel economy, the better. For those interested in more efficient models, reviewing all Porsche fuel economy data may reveal hybrid options within the broader Panamera range.

Tips to maximize efficiency

While outright fuel efficiency isn’t the primary concern for Panamera Turbo Executive owners, some driving habits can help minimize fuel consumption without sacrificing too much performance. Avoid aggressive acceleration and braking. The Panamera’s reliable engine responds eagerly to throttle inputs, but gentler acceleration will significantly reduce fuel consumption, especially in city driving.

Maintain proper tire inflation. Underinflated tires increase rolling resistance, forcing the engine to work harder and burn more fuel. Check your tire pressure regularly, and ensure it matches the recommended specifications listed on the door jamb.

Reduce unnecessary weight. Carrying excessive cargo in the trunk or rear seats adds to the car’s overall weight, impacting fuel economy. Remove any items that you don’t need for your daily commute or long-distance journeys.

Use cruise control on the highway. Maintaining a consistent speed on long stretches of highway can improve fuel efficiency compared to constantly varying your speed. The Panamera’s adaptive cruise control system can further enhance efficiency by automatically adjusting your speed to maintain a safe following distance.

Service your vehicle according to Porsche’s recommended maintenance schedule. Regular maintenance, including oil changes, air filter replacements, and spark plug replacements, ensures that the engine is running optimally and efficiently.