17 MPG combined is what you can expect for the 2023 Porsche Panamera Turbo S 4.0L 8-cyl. This car isn’t a Prius, and buyers likely aren’t comparing it to one. Gas mileage isn’t the main reason for choosing a vehicle with 620 horsepower that accelerates to 60 mph in under three seconds. This car prioritizes power, handling, and exclusivity. The poor gas mileage is the price for experiencing supercar-level performance in a four-door car.

City and highway performance

The EPA estimates 15 MPG in the city and 21 MPG on the highway, which shows the Panamera Turbo S’s versatility. The 4.0L twin-turbo V8 is powerful and features turbocharging and direct injection. Stop-and-go traffic in cities will quickly empty the fuel tank. But on the open road, the cylinder deactivation system and the eight-speed PDK transmission can reduce gas consumption if you drive conservatively. However, it’s hard to drive conservatively with that much power, and most owners probably see lower numbers than the official estimates.

Annual fuel cost

The EPA says the annual fuel cost for the 2023 Porsche Panamera Turbo S is $3,400. This is based on driving 15,000 miles per year using national average fuel prices. Individual driving habits, local fuel costs, and performance driving will change the actual annual cost. Consider $3,400 a minimum since you’ll probably drive it hard.

Real-world expectations

While the EPA provides a benchmark, real-world MPGs for the Panamera Turbo S will vary based on driving style and conditions. If you often use the engine’s power, expect your gas mileage to be less than the official 17 MPG combined rating. However, if you mainly drive on the highway and accelerate gradually, you might match or exceed the EPA’s highway estimate. Expect an average somewhere between 14 and 19 MPG, which reflects the car’s performance mixed with the driver’s habits. Check out PANAMERA MPG across all years to see data from previous years.

How it compares

The Panamera Turbo S’s fuel economy is similar to other high-performance luxury sedans. The Mercedes-AMG GT 63 S 4-Door Coupe, also with a twin-turbo V8, gets an EPA-estimated 16 MPG combined. The BMW M5 CS, which is lighter, gets 17 MPG combined. The Audi RS7, also with a similar powertrain, gets around 17 MPG. Extreme performance always affects fuel consumption, and the Panamera Turbo S is no exception. Buyers of these cars don’t expect hybrid efficiency; they’re paying for an unparalleled driving experience and accept high fuel costs. For all Porsche fuel economy data, browse our archives.

Tips to maximize efficiency

Although the Panamera Turbo S is made for performance, you can get better gas mileage from the V8. Use the Porsche Drive Mode selector and choose “Normal” or “Eco” mode when you can. These modes change the throttle response and shift points to focus on efficiency instead of acceleration. Even in these modes, the car is still fast.

Check your tire pressures. Keeping tires properly inflated reduces rolling resistance, improving fuel economy. See the sticker on the driver’s side doorjamb for the recommended tire pressure for normal and higher-speed conditions. Check alignment regularly too.

Avoid aggressive acceleration and hard braking. Smooth, gradual movements reduce fuel consumption and let the engine and transmission work better. Imagine an egg between your foot and each pedal; quick movements waste gas.

Think about the route you take. Avoiding stop-and-go traffic and congestion can improve your fuel economy, especially in cities. Planning your route can save you time and gas.