19 MPG combined is the price of owning a Porsche Cayenne GTS. This isn’t a vehicle for penny-pinchers; it’s for enthusiasts who prioritize driving engagement, performance, and exclusivity over maximizing gas mileage. Buyers understand they’re trading a powerful V6 for the best fuel efficiency. They’re typically affluent individuals or families who appreciate the Porsche crest and the performance it promises, and they’re willing to pay for it at the pump.

City and highway performance

The EPA estimates the 2017 Porsche Cayenne GTS at 16 MPG in the city and 23 MPG on the highway. The 16 MPG city figure reflects the demands of stop-and-go driving with a performance-oriented engine and standard all-wheel drive. Both contribute to higher fuel consumption when frequently accelerating from a standstill. The 23 MPG highway figure is better, showing the Cayenne GTS can achieve reasonable mileage on longer journeys, especially when driven carefully. Buying a Cayenne GTS to save fuel on the Interstate isn’t something people do.

Annual fuel cost

The EPA calculates the annual fuel cost for the 2017 Porsche Cayenne GTS at $3,050. This figure is based on driving 15,000 miles per year and using the national average fuel price at the time of calculation. Your fuel costs will vary depending on your driving, local fuel prices, and the type of fuel you use (premium is recommended). Consider $3,050 a benchmark, and a reminder of the cost of high performance.

Real-world expectations

While the EPA figures provide a standard for comparison, real-world fuel economy for the 2017 Porsche Cayenne GTS can change. Aggressive driving, using the engine’s full power, will lead to lower MPG. But conservative driving, especially on the highway, could produce slightly better results than the EPA estimates. Tire pressure, vehicle maintenance, and weather conditions also matter. A heavy foot combined with mostly city driving could easily drop the average to the low teens, while a careful driver on a long highway trip *might* see almost 25 MPG. Those scenarios, however, are not typical.

How it compares

The 2017 Porsche Cayenne GTS doesn’t save fuel. A 2017 BMW X5 xDrive50i, with its more powerful V8, achieves a similar 17 MPG combined. The supercharged Range Rover Sport with its gasoline engine uses more fuel, around 16 MPG combined. Even the Audi SQ5, mechanically related to the Cayenne, but lighter and with a less powerful engine, only manages about 21 MPG combined. Most performance SUVs don’t get great fuel economy, and the Cayenne GTS is one of them. Its buyers are trading efficiency for the thrill of driving. For access to all Porsche fuel economy data, check out our Porsche make page. Or, if you’re interested in exploring CAYENNE MPG across all years, we have information available on that, too.

Tips to Maximize Efficiency

While the Cayenne GTS isn’t made for saving fuel, owners can take steps to improve mileage. Avoid idling, as this wastes fuel and causes emissions. When stationary for more than a minute, turn off the engine.

Make sure your tires are inflated to the recommended pressure on the doorjamb sticker. Underinflated tires increase rolling resistance, which hurts fuel economy.

Avoid aggressive acceleration and braking. Smooth inputs use less gas than sudden bursts of speed. Anticipate traffic flow and maintain a consistent speed.

Reduce weight in the vehicle. Extra cargo decreases fuel economy. Remove items you don’t need regularly.

Keep up with maintenance, including oil changes, air filter replacements, and spark plug inspections. A well-maintained engine operates better.