19 MPG combined isn’t going to win any awards for less gas, but for the 2019 Porsche Panamera GTS 4.0L 8-cyl, it’s practically a badge of honor. This isn’t a car bought for hypermiling; it’s bought for demolishing backroads and effortlessly crossing continents. The fuel consumption reflects the strong performance potential under that long hood. Let’s be honest, anyone seriously considering this car already knows it’s not going to sip fuel like a Prius. But, for those who want to understand the full picture of its fuel economy, here’s what you need to know.

City and highway performance

The EPA estimates for the Panamera GTS land at 16 MPG in the city and 23 MPG on the highway. This discrepancy highlights this car’s dual nature. In stop-and-go traffic, the powerful V8 gulps fuel as it works to move the Panamera’s substantial weight.

On the open road, with the adaptive cruise control engaged and the engine loafing along in a high gear, 23 MPG is a respectable figure, even if it is well below hybrid territory. The eight-speed automatic transmission plays a crucial role here, offering quick shifts when performance is needed and taller ratios for efficient cruising. This is a car that encourages spirited driving, though doing so will punish fuel economy, so the EPA numbers reflect a mix of driving styles and conditions.

Owners who spend most of their time navigating urban landscapes should expect to see lower numbers, while those who regularly take advantage of the Panamera’s grand touring capabilities can expect fuel efficiency closer to the highway estimate.

Annual fuel cost

According to the EPA, the annual fuel cost for the 2019 Porsche Panamera GTS 4.0L 8-cyl is $3,050. That figure is based on driving 15,000 miles per year and using national average fuel prices. For those covering more or less distance annually, or those living in areas with higher fuel costs, the number will naturally vary, but it gives a standardized baseline for comparison.

Keep in mind that this calculation assumes you will be using premium fuel, which is mandatory for optimal performance and longevity of the engine. Skimping on the recommended fuel grade isn’t worth the potential long-term damage it can cause, negating any short-term savings. Owners of this car should therefore budget a substantial amount for fuel on an annual basis.

Real-world expectations

While the EPA provides a standardized test, real-world fuel economy can vary dramatically depending on driving style, road conditions, and even weather. Owners who frequently tap into the GTS’s power will likely see numbers below the EPA estimates. Aggressive acceleration, frequent use of Sport or Sport Plus modes, and constant trips to the upper reaches of the tachometer will drastically impact fuel consumption.

Conversely, those who adopt a more relaxed driving style, use cruise control on the highway, and anticipate traffic flow can potentially achieve figures closer to, or even slightly above, the EPA ratings. Understanding how your personal driving habits influence fuel economy is key to setting realistic expectations for your PANAMERA MPG across all years.

How it compares

The 2019 Panamera GTS exists in a competitive segment of high-performance luxury sedans. A direct competitor, the Mercedes-AMG GT 63 S 4-Door Coupe, with its similar performance profile delivers comparable fuel economy, achieving around 15 MPG city and 21 MPG highway. Another competitor, the BMW M5, manages slightly better numbers, with around 17 MPG city and 25 MPG highway.

While those numbers represent an advantage, the Panamera offers a unique blend of performance, luxury, and practicality that its buyers value beyond pure fuel efficiency. For those seeking slightly better MPG within the Porsche family, it is wise to compare all Porsche fuel economy data and consider the E-Hybrid versions of the Panamera, which offer a plug-in hybrid powertrain for improved fuel economy and electric-only driving range, though with a corresponding price premium.

Tips to maximize efficiency

The most effective way to improve fuel economy in the Panamera GTS is to adopt a smoother driving style. Avoid aggressive acceleration and hard braking, and instead anticipate traffic flow to maintain a consistent speed. Use cruise control on the highway to minimize speed fluctuations and optimize fuel consumption.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, which forces the engine to work harder and consumes more fuel. Check your tire pressure regularly and inflate them to the recommended levels specified on the doorjamb sticker. Pay close attention when the weather gets colder, as tire pressure decreases with temperature.

Reduce unnecessary weight. Carrying extra cargo in the trunk or rear seats adds weight to the vehicle, which reduces fuel economy. Remove any unnecessary items from the car to minimize the load on the engine. This also applies to roof racks or cargo carriers; remove them when not in use, as they create aerodynamic drag that decreases efficiency.

Maintain your vehicle properly. Regular maintenance, such as oil changes, air filter replacements, and spark plug checks, ensures that the engine is running efficiently. A well-maintained engine consumes less fuel and delivers optimal performance. The 2019 Panamera GTS has a turbocharged engine that responds particularly well to consistent maintenance schedules.