Based on data from 35 vehicles, 1,642 fuel-ups and 395,744 miles of driving, the 2008 Porsche Cayman gets a combined Avg MPG of 19.68 with a 0.20 MPG margin of error.

Any Engine Type 2.7L H6 GAS (11) 3.4L H6 GAS (20) H6 GAS (4) Any Body Style Hatchback (8) Any Submodel Base (11) S (20) Other (4)

Below you can see a distribution of the fuel-ups with 74 outliers (4.31%) removed.

Following shows the average MPG of each of the 35 vehicles in the system.

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• Cayman S

  2008 Porsche Cayman S 3.4L H6 GAS Manual 6 Speed
  Added Aug 2016 • 27 Fuel-ups

  Property of Deezil

• 18.8 Avg MPG

• Azreal

  2008 Porsche Cayman 2.7L H6 GAS Manual 5 Speed Hatchback
  Added Jan 2019 • 46 Fuel-ups

  Property of demigorge

• 21.4 Avg MPG

• Cayman S

  2008 Porsche Cayman S 3.4L H6 GAS Standard 6 Speed
  Added Sep 2016 • 106 Fuel-ups

  Property of motherFNbrandon

• 19.3 Avg MPG

• My Cayman

  2008 Porsche Cayman S 3.4L H6 GAS Standard 6 Speed
  Added Jul 2018 • 81 Fuel-ups

  Property of MoltFiST

• 18.3 Avg MPG

• 987.1 Cayman S

  2008 Porsche Cayman S 3.4L H6 GAS Manual 6 Speed Hatchback
  Added Aug 2018 • 13 Fuel-ups

  Property of tbucklin

• 18.0 Avg MPG

• My Cayman

  2008 Porsche Cayman S 3.4L H6 GAS Manual 6 Speed
  Added Jun 2019 • 6 Fuel-ups

  Property of RiverRunner66

• 19.4 Avg MPG

• Sasha

  2008 Porsche Cayman S 3.4L H6 GAS Standard 6 Speed
  Added May 2018 • 52 Fuel-ups

  Property of juicejr

• 17.0 Avg MPG

• Cayman S

  2008 Porsche Cayman S 3.4L H6 GAS Standard 6 Speed
  Added Apr 2017 • 59 Fuel-ups

  Property of nick_318is

• 18.1 Avg MPG

• Batmobile

  2008 Porsche Cayman S 3.4L H6 GAS Standard 6 Speed
  Added Aug 2016 • 153 Fuel-ups

  Property of jugu

• 18.6 Avg MPG

• Lizard S

  2008 Porsche Cayman S 3.4L H6 GAS Standard 6 Speed Hatchback
  Added Oct 2017 • 3 Fuel-ups

  Property of 86nine51

• 19.3 Avg MPG

• Petra

  2008 Porsche Cayman S 3.4L H6 GAS Standard 6 Speed Hatchback
  Added Jun 2011 • 108 Fuel-ups

  Property of chainrxn

• 20.9 Avg MPG

• Porsche Cayman

  2008 Porsche Cayman 2.7L H6 GAS Standard 5 Speed
  Added Oct 2016 • 38 Fuel-ups

  Property of Gas_Buddy

• 24.0 Avg MPG

• Sabine

  2008 Porsche Cayman GAS H6
  Added Nov 2011 • 22 Fuel-ups

  Property of McDuff

• 28.3 Avg MPG

• Sabine

  2008 Porsche Cayman GAS H6
  Added Aug 2011 • 4 Fuel-ups

  Property of Medel

• 21.5 Avg MPG

• Cayman S

  2008 Porsche Cayman GAS H6
  Added May 2010 • 6 Fuel-ups

  Property of neosomatic

• 17.9 Avg MPG

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