22 MPG combined might seem like a middling number, but it’s surprisingly respectable for the 2015 Porsche 911 Targa 4. This isn’t a grocery-getter or a long-distance cruiser; it’s a statement. It’s a machine designed to deliver a visceral driving experience, and its fuel economy reflects that priority. No Targa 4 buyer expects Prius-like efficiency, but understanding the fuel consumption is still a key part of ownership.

City and highway performance

The 2015 911 Targa 4, equipped with its 3.4L flat-six engine and seven-speed automated manual transmission (AM-S7), achieves an EPA-estimated 19 MPG in the city and 26 MPG on the highway. The city figure is where the 911’s performance-oriented nature is most evident. Stop-and-go traffic and spirited acceleration take their toll.

On the open road, however, the Targa 4 settles into a more efficient rhythm. The seven-speed transmission allows for relaxed cruising at highway speeds, contributing to the relatively decent 26 MPG rating. Porsche’s engineering clearly shines through, extracting reasonable fuel efficiency from an engine designed for raw power and exhilarating performance.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2015 Porsche 911 Targa 4 at $2,650. This figure is calculated based on driving 15,000 miles per year, with a hypothetical fuel price reflecting a national average. While individual fuel costs will vary depending on driving habits and local fuel prices, this figure provides a useful benchmark. Buyers considering a 911 Targa 4 aren’t typically hyper-focused on budgeting for fuel, but this provides a relatable way to contextualize the vehicle’s thirst, and is something that owners should expect for this type of vehicle. To see all Porsche fuel economy data, you can explore our site.

Real-world expectations

While EPA estimates offer a standardized comparison, real-world MPG can vary significantly. A 911 Targa 4 driven primarily in city traffic with a heavy foot will likely see figures below 19 MPG. Conversely, careful highway driving might yield results closer to, or even slightly exceeding, the 26 MPG estimate.

Driving style, traffic conditions, terrain, and even tire pressure can impact fuel economy. Owners who prioritize fuel efficiency can take steps to improve their mileage, but ultimately, the Targa 4 is designed to be enjoyed, and that often comes at the expense of optimal fuel consumption.

How it compares

The 911 Targa 4 exists in a unique space. Comparing it directly to “competitors” is difficult, but understanding the fuel economy landscape among similar performance vehicles is valuable. For instance, the BMW M4 convertible from the same year achieves a similar 17 MPG city and 26 MPG highway, albeit without the Targa’s unique roof design and all-wheel drive. The Jaguar F-Type R convertible, a more direct competitor in terms of performance and price, typically delivers combined MPG in the high teens, with city MPG often closer to 16 MPG. Even within the Porsche family, the rear-wheel-drive 911 Carrera S delivers slightly improved fuel economy, around 20 MPG city and 28 MPG highway, showcasing the slight efficiency trade-off for all-wheel drive in the Targa 4. Review 911 MPG across all years to see the trends in fuel economy over time. These comparisons highlight that the Targa 4 offers performance and style while remaining within a reasonable fuel efficiency range for its class.

Tips to maximize efficiency

Gentle acceleration is crucial. The Targa 4’s flat-six engine is responsive, but aggressive throttle inputs burn fuel quickly. Smoothly building speed, especially from a standstill, can noticeably improve city MPG. Mastering the art of light acceleration can be a small, subtle, and satisfying part of owning a performance vehicle like this.

Use the automatic start/stop system. This feature, which automatically shuts off the engine when the car is stopped, is designed to reduce fuel consumption in stop-and-go traffic. While some drivers find it intrusive, it can noticeably improve fuel economy in urban settings. Experiment with it and see if it fits your driving style, or if the slight fuel savings are worth the change to your driving experience that it brings.

Maintain proper tire pressure. Under-inflated tires increase rolling resistance, leading to reduced fuel efficiency. Regularly check and inflate your tires to the recommended pressure, found on the driver’s side doorjamb. This is a simple but effective way to optimize fuel economy and improve handling.

Avoid unnecessary idling. Letting the engine idle for extended periods wastes fuel. If you’re stopped for more than a minute, it’s generally more fuel-efficient to turn off the engine. This is especially true with modern vehicles like the Targa 4, which are designed to restart quickly and efficiently.