19 MPG combined is the price of admission to the Porsche club, specifically the 2016 Cayenne S with its sonorous 3.6L V6. Few Cayenne S buyers prioritize fuel efficiency, but understand it’s a tradeoff for the distinctive styling, driving experience, and badge prestige that the Cayenne brings to the luxury SUV segment. This is a vehicle purchased for a specific image and driving feel, and while 19 MPG won’t win any awards for lower fuel costs, it’s a compromise most owners are willing to make.

City and highway performance

The 2016 Cayenne S reveals different characteristics in the city and on the highway. The official EPA estimate puts city driving at 16 MPG. This reflects urban environments with stop-and-go traffic, the engine’s tendency to use more fuel during acceleration, and the added drain of running accessories like air conditioning in traffic. Out on the open road, however, the Cayenne S fares noticeably better, achieving a respectable 24 MPG in highway driving. The smooth eight-speed automatic transmission undoubtedly helps at higher speeds, allowing the engine to settle into a more efficient RPM range and minimize excessive fuel consumption. For those who spend much of their time on the highway, the Cayenne S provides some relief from its thirstier city habits. You can also view the CAYENNE MPG across all years to see how this compares to other model years.

Annual fuel cost

The EPA estimates an annual fuel cost of $3,050 for the 2016 Porsche Cayenne S. This figure is based on driving 15,000 miles per year, with a mix of city and highway driving conditions, and using the EPA’s assumed national average fuel prices. Individual fuel costs will vary depending on local fuel prices and driving habits. Plus, the actual ratio of city to highway miles driven will change costs. The $3,050 benchmark offers a standardized point of comparison. It is important to consider this figure with the overall cost of ownership. Factors such as insurance, maintenance, and potential repairs, can be substantial for a vehicle in this class.

Real-world expectations

While the EPA estimates provide a useful baseline, real-world fuel economy can often differ. Aggressive driving habits, frequently hauling cargo, consistent use of Sport mode, and even tire pressure impact the MPG you achieve in the Cayenne S. Owners who primarily drive in congested city environments see figures closer to, or even below, the 16 MPG city rating. Conversely, those who predominantly use the Cayenne S for longer highway trips with a gentle driving style may approach or slightly exceed the EPA’s 24 MPG highway estimate. Mindful driving habits are key to maximizing fuel efficiency for any vehicle.

How it compares

In the realm of mid-size luxury SUVs, the 2016 Porsche Cayenne S finds itself among a mixed bag of fuel efficiency ratings. A similarly powerful BMW X5 xDrive35i from the same year achieves a slightly better combined rating of 20 MPG. The supercharged Range Rover Sport, with its more potent V8 engine, sacrifices fuel economy with a combined 16 MPG. Even the Acura MDX, a more mainstream and less performance-oriented choice, manages a significantly better 22 MPG combined. These differences matter because Cayenne S buyers likely cross-shop these vehicles. The Porsche’s handling prowess and brand cachet often tip the scales regardless of the MPG difference. For all all Porsche fuel economy data, see our overview.

Tips to maximize efficiency

The 3.6L V6 in the Cayenne S responds well to a smooth driving style. Avoid aggressive acceleration and hard braking, as these actions consume significantly more fuel. Anticipate traffic flow and maintain a steady speed when possible. The Cayenne S has performance available, but enjoying it all the time will affect your fuel bill.

Check your tire pressures regularly and ensure they are inflated to the recommended levels. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Consult the sticker on the driver’s side doorjamb for the correct tire pressure specifications.

Minimize excessive idling. If you’re stopped for more than a minute, turn off the engine. Modern engines are designed to restart quickly and efficiently. Idling wastes fuel unnecessarily. This is important in city driving where frequent stops are commonplace.

Avoid carrying unnecessary weight in the vehicle. The heavier the load, the harder the engine has to work to accelerate and maintain speed, leading to increased fuel consumption. Remove any items from the trunk or cargo area that are not essential.

Consider using the Cayenne’s coasting function, if equipped. This feature disengages the engine from the drivetrain when coasting downhill or approaching a stop, reducing engine braking and allowing the vehicle to roll more freely, saving fuel. Use the technology built into the Cayenne to improve your MPG.