The 2017 Porsche 911 Turbo gets 21 MPG combined, which isn’t going to win any awards for less gas, and that’s fine. This isn’t a car purchased to save the planet. It’s a statement, a finely tuned instrument designed to deliver blistering performance with surprising (though not class-leading) practicality, purchased by those who want power and precision over fuel efficiency. The 911 Turbo buyer knows the price, which includes frequent trips to the gas station.

City and highway performance

The EPA estimates of 19 MPG in the city and 24 MPG on the highway reflect driving a high-performance machine. The city figure acknowledges stop-and-go traffic, where the 3.8L twin-turbocharged flat-six engine is constantly surging and braking. The highway number is more optimistic, attainable when cruising at consistent speeds, where the automatic transmission helps the engine settle. Few 911 Turbos spend much time solely in either environment, so the combined 21 MPG is the best overall measure in most cases.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2017 Porsche 911 Turbo at $2,750. This is based on driving 15,000 miles per year, using national average fuel prices for premium gasoline. It’s a useful guide, although individual fuel costs will vary based on driving style and location, where gas prices may be higher or lower than the national average. Consider this figure a rough estimate to consider when assessing all the costs of owning a car that is anything but “ordinary.”

Real-world expectations

While the EPA provides standardized testing data, drivers should be realistic. The 911 Turbo is incredibly responsive, and the temptation to exploit its power is ever-present. Spirited driving will lower MPG than the EPA estimates. However, those who consciously moderate their acceleration and rely on the car’s ample low-end torque can likely meet, or even slightly exceed, the 24 MPG highway rating. The key variable is the driver, and how often they use the Turbo’s immense power.

How it compares

Compared to other high-performance sports cars, the 2017 911 Turbo’s fuel economy is competitive, if not class-leading. The Audi R8 V10, for example, achieves around 16 MPG combined, so the Porsche is fairly efficient. A Nissan GT-R nets about 19 MPG combined, which is closer, but still shy of the Turbo. Check out 911 MPG across all years. Buyers in this segment still want some efficiency, even when performance is the primary motivator. A few extra MPG translate to fewer stops at the pump and slightly lower running costs, though those factors are secondary to the thrill of the drive. For a broader look at the brand, view all Porsche fuel economy data.

Tips to maximize efficiency

The 911 Turbo’s PDK transmission is very smart; allow it to manage gear selection whenever possible, especially in normal driving conditions. Avoid aggressive acceleration, which burns fuel rapidly.

The car’s immense torque means it can accelerate briskly, even at part throttle. Regular maintenance is also critical. Ensure the engine is properly tuned and that the tires are inflated to the correct pressure.

Underinflated tires increase rolling resistance, which hurts fuel economy. A well-maintained engine operates more efficiently, which translates to better MPG.

Use cruise control on long highway drives whenever practical. Maintaining a consistent speed minimizes unnecessary acceleration and deceleration, optimizing fuel consumption. Remember to disengage cruise control when approaching hills or curves to maintain control and safety.

Be mindful of aerodynamic drag. Removing unnecessary items from the car, such as roof racks or heavy cargo, can reduce weight and improve fuel economy, especially at higher speeds. Cleanliness is vital to aerodynamics, so make sure your car is washed, waxed and free of any mud, grime or debris.