17 MPG combined. Let’s be honest: if you’re worried about that number in a 2024 Porsche 911 Turbo, you don’t understand what this car is about. This isn’t a Prius; it’s a twin-turbocharged, all-wheel-drive car engineered to dominate corners and accelerate incredibly fast. Fuel efficiency is not a primary concern for someone who wants ultimate Porsche performance and can afford it.

City and highway performance

The official EPA figures estimate the 2024 911 Turbo at 14 MPG in the city and 21 MPG on the highway. These numbers show how much fuel the 3.7-liter flat-six engine uses when driven hard. Stop-and-go traffic will lower fuel consumption as the turbos spin up and down, pushing you forward in short, exciting bursts. On the open road, with a more consistent use of the accelerator, the 911 Turbo can achieve a respectable highway figure… relatively speaking. However, if you accelerate hard often, that 21 MPG will quickly drop into the teens.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2024 Porsche 911 Turbo is $3,400. This is based on driving 15,000 miles per year, with a mix of city and highway driving, using national average fuel prices (premium, of course). Think of this cost as a starting point; aggressive driving will increase that number. Anyone considering a 911 Turbo understands the financial costs, and the price of fuel is part of owning one.

Real-world expectations

Don’t expect to get the EPA numbers. Real-world fuel economy in a 911 Turbo depends on how you drive. Some owners report numbers below the EPA estimates, especially those who use the car for frequent short trips or spirited weekend drives. Track days? Expect single-digit fuel economy. The question isn’t “how much fuel can I save?”, but “how much fun can I get from each gallon?”. Expect frequent and potentially expensive visits to gas stations.

How it compares

Compared to other performance cars, the 911 Turbo’s fuel economy is comparable. The Mercedes-AMG GT 63 S E Performance, while having hybrid assistance, still only gets 20 MPG combined. The Audi R8 V10 Performance offers a similar 17 MPG combined rating. Even the Nissan GT-R, a relative bargain, achieves only 19 MPG combined. High performance requires fuel. The 911 Turbo buyer isn’t comparing it to hybrid SUVs or economy cars; they’re focused on maximizing performance in the world of high-horsepower sports cars. If efficiency is a concern, they might consider the base 911 Carrera, which achieves a more palatable 21 MPG combined (or browse 911 MPG across all years to see the range of options). It’s pointless to compare performance cars based on fuel economy.

Tips to maximize efficiency

While getting maximum MPG from a 911 Turbo may seem strange, some driving habits can slightly improve fuel consumption. Avoid accelerating and braking hard. The turbos use a lot of fuel to provide that exciting rush, so a smooth and steady application of the accelerator is important to keep fuel consumption down. Predict traffic and maintain a consistent speed when possible.

Effectively use the Porsche’s driving modes. The “Normal” mode reduces throttle response and optimizes the transmission for efficiency. While it may tame the car, it can help improve fuel economy during normal commutes. Don’t constantly use “Sport” or “Sport Plus” modes unless you’re on a track or a special road.

Make sure your tires are properly inflated. Underinflated tires increase rolling resistance, which hurts fuel economy. Check your tire pressures regularly and maintain the recommended levels specified on the door. Correct tire pressure also improves handling and tire lifespan.

Avoid unnecessary idling. Letting the engine idle for a long time wastes fuel. If you’re stopped for more than a minute, it’s generally more efficient to turn off the engine. Modern cars are designed to restart quickly and reliably, so there’s no need to keep the engine running.

Consider consulting all Porsche fuel economy data to compare MPG across different models and potentially make a slight change in your driving style based on what fuel-saving tech each features.