Based on data from 23 vehicles, 1,521 fuel-ups and 313,124 miles of driving, the 2008 Porsche Boxster gets a combined Avg MPG of 18.27 with a 0.25 MPG margin of error.

Any Engine Type 2.7L H6 GAS (7) 3.4L H6 GAS (12) H6 GAS (3) Any Body Style Convertible (8) Any Submodel RS 60 Spyder (2) Base (7) S (10) Other (4)

Below you can see a distribution of the fuel-ups with 34 outliers (2.19%) removed.

Following shows the average MPG of each of the 23 vehicles in the system.

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• Porsche

  2008 Porsche Boxster S 3.4L H6 GAS Standard 6 Speed Convertible
  Added Oct 2017 • 438 Fuel-ups

  Property of QGrav42

• 17.1 Avg MPG

• My Boxster

  2008 Porsche Boxster S 3.4L H6 GAS Manual 6 Speed
  Added Apr 2021 • 68 Fuel-ups

  Property of philoye

• 14.2 Avg MPG

• 2008 Boxster

  2008 Porsche Boxster 2.7L H6 GAS Automatic 5 Speed
  Added May 2017 • 116 Fuel-ups

  Property of easy_e

• 25.4 Avg MPG

• Ians Boxster 987.1 sport edition

  2008 Porsche Boxster 2.7L H6 GAS Manual 6 Speed Convertible
  Added Apr 2024 • 9 Fuel-ups

  Property of 14N

• 24.5 Avg MPG

• Porsche Boxster S - Sabrina

  2008 Porsche Boxster S 3.4L H6 GAS Manual 6 Speed
  Added Sep 2016 • 381 Fuel-ups

  Property of RufCTR

• 17.6 Avg MPG

• The General Lee

  2008 Porsche Boxster
  Added Jan 2014 • 108 Fuel-ups

  Property of wrxskier

• 18.0 Avg MPG

• My Boxster

  2008 Porsche Boxster 2.7L H6 GAS Manual 5 Speed
  Added Apr 2023 • 40 Fuel-ups

  Property of Mr-T

• 23.5 Avg MPG

• Nine Ate Seven

  2008 Porsche Boxster S 3.4L H6 GAS Manual 6 Speed
  Added Dec 2021 • 36 Fuel-ups

  Property of machojared

• 18.9 Avg MPG

• 2008 Boxster

  2008 Porsche Boxster 2.7L H6 GAS Manual 6 Speed Convertible
  Added Apr 2023 • 15 Fuel-ups

  Property of TomBuddTX

• 18.5 Avg MPG

• Porsche

  2008 Porsche Boxster S 3.4L H6 GAS Standard 6 Speed
  Added Apr 2017 • 22 Fuel-ups

  Property of arkina4

• 21.1 Avg MPG

• 2008 Boxster S

  2008 Porsche Boxster S 3.4L H6 GAS Manual 6 Speed Convertible
  Added Jun 2018 • 143 Fuel-ups

  Property of bryan-cars

• 18.4 Avg MPG

• 2008 Porsche Boxster

  2008 Porsche Boxster 2.7L H6 GAS Manual 6 Speed Convertible
  Added Nov 2019 • 13 Fuel-ups

  Property of TBuddenbohn

• 18.3 Avg MPG

• My Boxster

  2008 Porsche Boxster S 3.4L H6 GAS Automatic 5 Speed
  Added Aug 2017 • 32 Fuel-ups

  Property of svyper

• 19.4 Avg MPG

• Porsche Boxster S

  2008 Porsche Boxster S 3.4L H6 GAS Manual 6 Speed Convertible
  Added May 2021 • 5 Fuel-ups

  Property of Get2Jaime

• 19.2 Avg MPG

• Lisa's Spyder

  2008 Porsche Boxster RS 60 Spyder 3.4L H6 GAS Manual 6 Speed Convertible
  Added Sep 2020 • 45 Fuel-ups

  Property of tylerdurden2112

• 23.0 Avg MPG

• Porsche 987 Boxster S 3.4

  2008 Porsche Boxster S 3.4L H6 GAS Manual 6 Speed
  Added Feb 2020 • 7 Fuel-ups

  Property of stevepcom

• 21.6 Avg MPG

• Porsche

  2008 Porsche Boxster 2.7L H6 GAS Standard 5 Speed
  Added Apr 2018 • 159 Fuel-ups

  Property of porscheboxster

• 23.2 Avg MPG

• Boxster 08

  2008 Porsche Boxster 2.7L H6 GAS Manual 5 Speed Convertible
  Added Oct 2018 • 8 Fuel-ups

  Property of carljon1968

• 23.3 Avg MPG

• RS 60 Spyder

  2008 Porsche Boxster RS 60 Spyder 3.4L H6 GAS Standard 6 Speed
  Added Sep 2016 • 32 Fuel-ups

  Property of THG3

• 19.6 Avg MPG

• My Boxster

  2008 Porsche Boxster S 3.4L H6 GAS Standard 6 Speed
  Added Jun 2018 • 7 Fuel-ups

  Property of IamtheGTIguy

• 16.4 Avg MPG

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