Porsche · 2023
718 Cayman 2.0L 4-cyl
✓ EPA Verified
Premium Gasoline
Two Seaters
Rear-Wheel Drive
City
21
MPG
Combined
24
MPG
Highway
27
MPG
Annual Fuel Cost
$2,400
Based on 15,000 miles/year · EPA estimates
vs avg gas vehicle
$250
more per year
Class Comparison — Two Seaters
Top 26%
Better than 74 out of 100 vehicles in its class for fuel efficiency.
This vehicle: 24 MPG
This vehicle
24 MPG
Class average
21 MPG
Class lowest
14 MPG
EPA Energy & Environment Scores
5
Energy Score
Out of 10
5
GHG Score
Out of 10
375 lbs
Annual CO₂
g/mile tailpipe CO₂
Yes
Start-Stop
Auto stop-start
Vehicle Specifications
Engine2.0L 4-cyl
TransmissionAutomatic (AM-S7)
DriveRear-Wheel Drive
Fuel TypePremium Gasoline
Vehicle ClassTwo Seaters
Engine DescSIDI
Start-StopYes
EPA Vehicle ID45911

24 MPG combined is a compromise most 2023 Porsche 718 Cayman 2.0L owners happily accept. This isn’t a grocery-getter or a commuter car; it’s a purpose-built sports car, designed for driving exhilaration above all else. The small fuel cost is simply the price to experience razor-sharp handling and strong acceleration.

City and highway performance

The EPA estimates the 2023 Porsche 718 Cayman 2.0L at 21 MPG in the city and 27 MPG on the highway. This difference demonstrates the impact of driving style. Aggressive acceleration and stop-and-go traffic will decrease the Cayman’s efficiency.

However, on the open road at a steady cruise, the turbocharged 2.0L engine is surprisingly capable of efficiency, helped by the well-calibrated 7-speed automatic transmission (AM-S7.)

Annual fuel cost

The EPA calculates the annual fuel cost for the 2023 Porsche 718 Cayman 2.0L at $2,400. This calculation is based on driving 15,000 miles per year, with 45% of those miles driven in the city and 55% on the highway, using national average fuel prices. This is an estimate, your real-world fuel costs will vary depending on your driving habits and local fuel prices, both of which can change significantly.

Real-world expectations

While the EPA estimates provide a baseline, expect some variation in real-world use. Drivers who frequently enjoy the Cayman’s performance, particularly on weekends or track days, will likely observe fuel economy figures below the EPA combined rating.

On the other hand, those who prioritize smooth, consistent driving during their commutes might see numbers that meet or even slightly exceed the official figures. The Cayman rewards the driver, both in performance and economy, based on their input.

How it compares

Compared to other sports cars, the 2023 718 Cayman is in the middle regarding efficiency. The BMW Z4 sDrive30i roadster, for instance, achieves a slightly better 28 MPG combined, offering an alternative for those wanting more efficiency without sacrificing a sporty driving experience. The Nissan Z, with its larger V6 engine, gets 22 MPG combined. Looking at all Porsche fuel economy data, the Cayman is right where it should be, given its purpose. The decision depends on priorities; the Cayman’s handling and Porsche pedigree justify its fuel consumption for many enthusiasts.

Tips to maximize efficiency

Take it easy on the accelerator. The Cayman’s turbocharger provides torque at low RPMs, reducing the need to rev the engine. Smooth throttle inputs not only improve fuel economy but also contribute to a more relaxed driving experience when desired.

Maintain proper tire inflation. Underinflated tires increase rolling resistance, forcing the engine to work harder and consuming more fuel. Regularly check your tire pressures and inflate them to the recommended levels. It’s an easy maintenance task that pays dividends.

Anticipate traffic conditions. Planning your routes to avoid stop-and-go traffic can improve fuel economy, especially in urban environments. Using navigation apps with real-time traffic updates can help you choose the most efficient path, minimizing idling and maximizing fuel savings.

Avoid unnecessary weight. Carrying extra weight in the car reduces fuel economy. Removing unnecessary items from the trunk and passenger compartment can have a small impact over time.

Consider fuel additives. While not strictly necessary, some fuel additives designed to clean fuel injectors and improve combustion efficiency can help maintain optimal fuel economy over the long term across 718 MPG across all years.