19 MPG combined. That’s the EPA’s figure for the 2023 Porsche 911 Carrera 4 GTS, equipped with the 3.0L turbocharged flat-six and eight-speed PDK transmission. Let’s be clear: nobody buys a 911 GTS, especially one with all-wheel drive, because they’re prioritizing fuel efficiency. This is a performance machine engineered for driving satisfaction, and that comes with certain compromises. The target buyer values driving dynamics, exclusivity, and the unmistakable 911 experience far more than they do saving a few dollars at the pump.

City and Highway Performance

The 911 Carrera 4 GTS delivers 17 MPG in the city and 23 MPG on the highway. The city figure reflects the stop-and-go conditions where the engine is frequently idling or accelerating, placing greater demands on fuel consumption. The highway figure demonstrates that the 911 can achieve reasonable efficiency when cruising at consistent speeds, taking advantage of its advanced engine management and aerodynamics.

Annual Fuel Cost

The EPA estimates the annual fuel cost for the 2023 Porsche 911 Carrera 4 GTS at $3,050. This figure is based on driving 15,000 miles per year, with 55% of those miles driven in the city and 45% on the highway, using national average fuel prices. Keep in mind that premium fuel is required for optimal performance in the 911, so the actual cost may vary depending on local fuel prices.

Real-World Expectations

While the EPA provides a standardized fuel economy estimate, real-world MPG can vary significantly depending on driving style, traffic conditions, and other factors. Spirited driving, a common occurrence in a 911 GTS, will undoubtedly decrease fuel economy. Conversely, gentle acceleration and anticipation of traffic flow can improve MPG closer to, or even slightly above, the EPA estimates. Factors such as tire pressure, vehicle maintenance, and even weather conditions can also play roles in your vehicle’s fuel consumption. For a specific view, see 911 MPG across all years.

How It Compares

The 911 Carrera 4 GTS faces competition from other high-performance sports cars. The BMW M4 Competition xDrive, for example, is rated at 16 MPG city and 23 MPG highway, putting its combined figure roughly in the same ballpark as the Porsche. A Mercedes-AMG C63 S Coupe, though, can drop to 17 MPG combined. These cars offer similar levels of performance and luxury, although their driving experiences differ markedly. For the dedicated Porsche enthusiast, the slightly lower fuel economy compared to some competitors is often a worthwhile trade-off for the unique character and driving experience that only a 911 can provide. If you want to compare to the rest of the lineup, see all Porsche fuel economy data.

Tips to Maximize Efficiency

Smooth and consistent throttle inputs are key to maximizing fuel efficiency in the 911 GTS. Avoid aggressive acceleration and hard braking whenever possible. Anticipate traffic flow and maintain a steady speed to minimize fuel consumption. While tempting, frequent use of Launch Control or Sport Plus mode will drastically reduce MPG.

Regular maintenance, including proper inflation of the high-performance tires, is critical. Low tire pressure increases rolling resistance, which reduces fuel economy. Check your tire pressures at least once a month and ensure they are set to the manufacturer’s recommended specifications. A well-maintained engine is also a happy, and more efficient, engine.

Lightening the load inside your 911 can also help improve fuel economy. Remove any unnecessary items from the car, as added weight increases fuel consumption. While this might seem insignificant, every little bit helps when trying to squeeze extra miles out of each gallon.

Consider using the “Normal” driving mode for everyday commuting. This mode optimizes fuel economy by adjusting throttle response, shift points, and other engine parameters. While “Sport” and “Sport Plus” modes provide a more engaging driving experience, they also consume more fuel.