- Gas
- Two-seaters
- MY2006–2020
Porsche Cayman MPG & Fuel Cost by Year
14 model years · 2006–2020
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Porsche Cayman fuel economy at a glance
EPA has rated the Porsche Cayman for 14 model years, 2006 to 2020. Across those years its combined rating runs 20–25 MPG. The latest model year, 2020, has 6 configurations rated 21–24 MPG combined and costing $3,400–$3,830 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2006 is the 2019 Cayman 2.0L 4-cyl turbo RWD, at 25 MPG.
Porsche Cayman MPG by year
| Year | Gas (MPG) | $/yr |
|---|---|---|
| 2017-2020 Generation page | ||
| 2020 | 21–24 | $3,400–$3,830 |
| 2019 | 21–25 | $3,210–$3,770 |
| 2018 | 21–25 | $3,210–$3,770 |
| 2017 | 22–25 | $3,210–$3,650 |
| 2014-2016 Generation page | ||
| 2016 | 20–25 | $3,180–$4,050 |
| 2015 | 22–25 | $3,180–$3,660 |
| 2014 | 22–25 | $3,180–$3,580 |
| 2009-2012 Generation page | ||
| 2012 | 21–23 | $3,440–$3,740 |
| 2011 | 22–23 | $3,440–$3,740 |
| 2010 | 22–24 | $3,350–$3,650 |
| 2009 | 22–24 | $3,350–$3,650 |
| 2007-2008 Generation page | ||
| 2008 | 21–23 | $3,490–$3,830 |
| 2007 | 21–23 | $3,490–$3,830 |
| 2006 Generation page | ||
| 2006 | 21 | $3,830 |
Costs use the current EIA price set and 15,000 miles a year for every year, so years are comparable. Green marks the best year for each powertrain.
Porsche Cayman generations
5 generations between 2006 and 2020. Open one for the table of every model year and configuration.
2020 powertrain options
More Porsche models
Frequently asked questions
What is the Porsche Cayman's gas mileage by year?
EPA combined ratings for the Porsche Cayman run 20–25 MPG across model years 2006 to 2020. The latest year, 2020, is rated 21–24 MPG.
Which Porsche Cayman model year has the best gas mileage?
The 2019 Porsche Cayman Cayman 2.0L 4-cyl turbo RWD has the highest combined rating since 2006, at 25 MPG.
How much does a Porsche Cayman cost to fuel per year?
For MY2020, EPA-rated configurations cost $3,400–$3,830 a year to fuel, driving 15,000 miles at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient one costs $3,400.
Has the Porsche Cayman's fuel economy improved over time?
Yes. The most efficient configuration moved from 21 MPG in 2006 to 24 MPG in 2020, 3 MPG more.
Which Porsche Cayman model years have the same ratings?
EPA lists identical ratings as the previous year for 2008, 2010, 2019. The generation pages mark those years "same EPA ratings" and point to the year that holds the full table.