Based on data from 22 vehicles, 991 fuel-ups and 278,408 miles of driving, the 2015 Porsche Cayman gets a combined Avg MPG of 21.50 with a 0.25 MPG margin of error.

Any Engine Type 2.7L H6 GAS (5) 3.4L H6 GAS (17) Any Body Style Hatchback (9) Any Submodel Base (5) GTS (8) S (9)

Below you can see a distribution of the fuel-ups with 63 outliers (5.98%) removed.

Following shows the average MPG of each of the 22 vehicles in the system.

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• Cayman GTS

  2015 Porsche Cayman GTS 3.4L H6 GAS Standard 6 Speed
  Added Jun 2018 • 21 Fuel-ups

  Property of rtarver

• 20.3 Avg MPG

• My Cayman

  2015 Porsche Cayman S 3.4L H6 GAS Automatic Dual Clutch 7 Speed
  Added Jun 2019 • 106 Fuel-ups

  Property of gerber28

• 24.5 Avg MPG

• My Cayman

  2015 Porsche Cayman S 3.4L H6 GAS Standard 6 Speed
  Added May 2018 • 106 Fuel-ups

  Property of obiobiobi

• 18.4 Avg MPG

• Cayman S

  2015 Porsche Cayman S 3.4L H6 GAS Manual 6 Speed
  Added Apr 2022 • 19 Fuel-ups

  Property of ChrisNJ

• 20.0 Avg MPG

• Porsche Cayman Base

  2015 Porsche Cayman 2.7L H6 GAS Manual 6 Speed Hatchback
  Added Apr 2024 • 9 Fuel-ups

  Property of drew-culver

• 20.5 Avg MPG

• Porsche

  2015 Porsche Cayman GTS 3.4L H6 GAS Standard 6 Speed Hatchback
  Added Feb 2018 • 45 Fuel-ups

  Property of ninjabiker

• 21.4 Avg MPG

• Chris' Cayman S

  2015 Porsche Cayman S 3.4L H6 GAS Manual 6 Speed Hatchback
  Added Feb 2019 • 74 Fuel-ups

  Property of ChrisLW25

• 24.8 Avg MPG

• Porsche Cayman

  2015 Porsche Cayman 2.7L H6 GAS Automatic Dual Clutch 7 Speed Hatchback
  Added Aug 2021 • 46 Fuel-ups

  Property of vanmaxima

• 18.3 Avg MPG

• My Cayman

  2015 Porsche Cayman 2.7L H6 GAS Automatic Dual Clutch 7 Speed
  Added Apr 2023 • 8 Fuel-ups

  Property of kylerami

• 20.5 Avg MPG

• Cayman GTS

  2015 Porsche Cayman GTS 3.4L H6 GAS Standard 6 Speed
  Added May 2015 • 82 Fuel-ups

  Property of deepbluejh

• 19.4 Avg MPG

• 981CS

  2015 Porsche Cayman S 3.4L H6 GAS Manual 6 Speed
  Added Jan 2019 • 45 Fuel-ups

  Property of anekdotos

• 19.9 Avg MPG

• Porsche Cayman

  2015 Porsche Cayman GTS 3.4L H6 GAS Automatic Dual Clutch 7 Speed
  Added Mar 2018 • 137 Fuel-ups

  Property of RazendeRakker

• 21.8 Avg MPG

• 981 Cayman GTS

  2015 Porsche Cayman GTS 3.4L H6 GAS Manual 6 Speed
  Added Aug 2019 • 14 Fuel-ups

  Property of TurnOne

• 25.2 Avg MPG

• 981 Cayman S

  2015 Porsche Cayman S 3.4L H6 GAS Automatic Dual Clutch 7 Speed
  Added Sep 2015 • 154 Fuel-ups

  Property of 981Daily

• 21.1 Avg MPG

• 981 Cayman S

  2015 Porsche Cayman S 3.4L H6 GAS Automatic Dual Clutch 7 Speed Hatchback
  Added Aug 2014 • 22 Fuel-ups

  Property of HaroldAnderson

• 24.6 Avg MPG

• Cayman

  2015 Porsche Cayman GTS 3.4L H6 GAS Automatic Dual Clutch 7 Speed
  Added Apr 2016 • 21 Fuel-ups

  Property of TheGoldenV

• 17.8 Avg MPG

• Porsche

  2015 Porsche Cayman 2.7L H6 GAS Automatic Dual Clutch 7 Speed
  Added Jun 2015 • 116 Fuel-ups

  Property of karazuba

• 23.0 Avg MPG

• cayman gts

  2015 Porsche Cayman GTS 3.4L H6 GAS Automatic Dual Clutch 7 Speed Hatchback
  Added Sep 2015 • 49 Fuel-ups

  Property of suprolla

• 19.0 Avg MPG

• Cayman

  2015 Porsche Cayman 2.7L GAS H6 Standard 6 Hatchback (2 Door)
  Added May 2015 • 57 Fuel-ups

  Property of jackp311

• 21.4 Avg MPG

• 2015 Cayman S

  2015 Porsche Cayman S 3.4L H6 GAS Automatic Dual Clutch 7 Speed Hatchback
  Added Feb 2017 • 5 Fuel-ups

  Property of ChrisMag2099

• 22.3 Avg MPG

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