Porsche · 2024
911 S/T 4.0L 6-cyl
✓ EPA Verified
Premium Gasoline
Two Seaters
Rear-Wheel Drive
City
13
MPG
Combined
15
MPG
Highway
19
MPG
Annual Fuel Cost
$3,850
Based on 15,000 miles/year · EPA estimates
vs avg gas vehicle
$1,700
more per year
Class Comparison — Two Seaters
Bottom 4%
Better than 4 out of 100 vehicles in its class for fuel efficiency.
This vehicle: 15 MPG
This vehicle
15 MPG
Class average
21 MPG
Class lowest
14 MPG
EPA Energy & Environment Scores
2
Energy Score
Out of 10
2
GHG Score
Out of 10
584 lbs
Annual CO₂
g/mile tailpipe CO₂
Yes
Start-Stop
Auto stop-start
Vehicle Specifications
Engine4.0L 6-cyl
TransmissionManual 6-spd
DriveRear-Wheel Drive
Fuel TypePremium Gasoline
Vehicle ClassTwo Seaters
Engine DescSIDI
Start-StopYes
EPA Vehicle ID47758

The 2024 Porsche 911 S/T gets 15 MPG combined. To be blunt, nobody buys a limited-edition, track-focused 911 variant expecting Prius-like efficiency. This car exists to deliver a visceral, unfiltered driving experience, and fuel economy is simply collateral damage. If you’re crunching numbers on gasoline costs, you’re missing the point of this half-million-dollar indulgence.

City and highway performance

The EPA estimates suggest 13 MPG in the city and 19 MPG on the highway. These figures reflect the S/T’s core characteristics: a high-revving, naturally aspirated 4.0-liter flat-six engine mated exclusively to a six-speed manual transmission. City driving exposes the engine’s thirst, as stop-and-go traffic keeps it from operating in its most efficient range.

The highway figure of 19 MPG indicates a more palatable consumption rate when the engine can settle into a cruising speed. But even on the open road, the S/T’s focus on performance ultimately dictates its fuel demands. This isn’t a grand tourer; it’s a scalpel designed for surgical precision on winding roads and racetracks.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2024 Porsche 911 S/T comes out to be $3,850. This figure is based on driving 15,000 miles per year and using the national average fuel price, which fluctuates. The EPA uses a mix of 55% city and 45% highway driving in its calculations. It’s a sobering number, and one that many prospective S/T buyers may ignore.

The cost to purchase and maintain this vehicle far outweighs the concerns of a few thousand dollars in annual fuel expense. After all, if you plan on tracking this car, premium fuel will only be one modest cost in a sea of expensive tires, brakes, and other consumables. Explore 911 MPG across all years to see how this compares to the rest of the model line.

Real-world expectations

The EPA estimates should be considered benchmarks, not guarantees. Expect to see numbers that vary depending on your driving style and environment. Aggressive acceleration and constant gear changes, behaviors encouraged by the S/T’s nature, will quickly diminish fuel economy.

Conversely, a driver with a light touch on the throttle might improve upon the EPA’s figures. But let’s be honest, few S/T drivers will attempt to hypermile this car. The real-world experience will likely be below the EPA estimate, especially with spirited driving on backroads and racetracks.

How it compares

Comparing the 911 S/T to other vehicles in terms of fuel economy is almost irrelevant, given its unique mission. However, for context, the Porsche 911 GT3 RS, another track-focused model with a similar engine, achieves EPA estimates in the same ballpark.

Some of the S/T’s more luxurious, less track-focused siblings like the 911 Carrera offer far more reasonable fuel economy in the mid 20s. Consider the BMW M4 Competition, which gets around 16-23 MPG using the EPA’s testing methodology. The comparison highlights the 911 S/T prioritizes driving exhilaration over fuel efficiency in a way that the others do not. For more information, see all all Porsche fuel economy data.

Tips to maximize efficiency

While chasing MPG in the S/T is somewhat contrary to its purpose, a few strategies can marginally improve fuel economy. Smooth, deliberate throttle inputs are key. Avoid sudden acceleration and excessive revving, especially in lower gears. The naturally aspirated engine responds well to finesse.

Anticipate traffic flow and coast whenever possible. The S/T’s lightweight design and responsive brakes allow for efficient momentum management. Downshifting early can also provide engine braking, reducing the need for hard braking and conserving fuel.

Ensure your tires are properly inflated to the recommended pressure. Under-inflated tires increase rolling resistance and reduce fuel economy. Check your tire pressure regularly, especially before long drives. This also helps to optimize handling and extending tire life.

Avoid unnecessary weight in the vehicle. Every extra pound reduces fuel economy, albeit marginally. Remove any non-essential items from the trunk and passenger compartment before embarking on a drive.

Plan your trips strategically, choosing routes with fewer stop-and-go traffic conditions when possible. Traffic congestion burns fuel and reduces overall efficiency. Using route-planning apps can help identify efficient routes along your journey.