The 2015 Porsche 911 Turbo achieves 20 MPG combined, a number that seems at odds with the car’s purpose. This isn’t a car usually purchased for saving gas. It’s built to dominate tracks and roads, a statement of engineering excellence within a familiar shape. Expecting this level of fuel consumption is part of owning a car with rapid acceleration, responsive handling, and the exciting sound of a turbocharged flat-six engine.

City and highway performance

The EPA rates the 2015 Porsche 911 Turbo at 17 MPG in the city and 24 MPG on the highway. The city figure comes from simulated stop-and-go traffic and slower speeds, and it reflects how the engine performs with constant throttle changes. The highway figure, based on consistent cruising, suggests that while the horsepower is readily available, the 7-speed PDK transmission can settle into a relatively efficient gear when possible. Remember that these numbers were obtained under controlled conditions, and aggressive driving will lower real-world results.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2015 Porsche 911 Turbo at $2,900. This is based on driving 15,000 miles per year, with a mix of city and highway driving, and using the national average fuel price for premium gasoline. This provides a standard way to compare fuel costs between vehicles. Actual costs depend on driving habits, local fuel prices, and the fuel used, but $2,900 is a helpful reference for potential owners.

Real-world expectations

Anyone expecting to consistently achieve the EPA’s 20 MPG combined rating in a 911 Turbo will likely be disappointed. It’s too tempting to use the car’s immense power. More realistic combined fuel economy, especially for those who frequently use the turbos, is probably closer to the high teens.

Frequent track days, spirited drives, and even occasional bursts of acceleration will make a big difference. The payoff is an unmatched driving experience, but it sacrifices fuel efficiency. See 911 MPG across all years.

How it compares

The 2015 911 Turbo’s fuel economy is normal for performance vehicles. The Audi R8 V10, despite its naturally aspirated engine, gets similar figures around 16 MPG city and 23 MPG highway. Some high-powered sedans like the BMW M5 can offer slightly better fuel economy, around 15 MPG city and 22 MPG highway, but they balance performance and practicality differently. Track-focused cars like the Nissan GT-R usually get worse numbers in the low teens.

The 911 Turbo owner accepts a compromise in fuel efficiency for the Porsche’s unique character. For a broader look at the brand, review all Porsche fuel economy data.

Tips to maximize efficiency

Don’t always accelerate hard. The 911 Turbo’s power delivery is very linear, and even moderate throttle provides plenty of acceleration for merging and passing. Driving smoothly will improve fuel consumption without much sacrifice.

Use the PDK transmission’s paddle shifters. Upshift early and keep the engine revs lower to save fuel, especially in the city. The PDK is intuitive, and you can predict shift points and optimize for efficiency with practice.

Keep tires properly inflated. Low tire pressure affects handling and increases rolling resistance, impacting fuel economy. Regularly check pressures and keep them at the levels in the owner’s manual.

Remove extra weight. Reducing the car’s load helps the engine. The 911 Turbo isn’t for hauling cargo, but removing clutter in the interior and trunk will slightly improve fuel efficiency.

Even with your best effort, a 911 Turbo won’t be mistaken for a Prius. The benefit of owning this car is its amazing performance and driving. Trying to hypermile it defeats the purpose. Enjoy the car as a great example of automotive engineering, and accept the fuel consumption.