Based on data from 31 vehicles, 1,484 fuel-ups and 338,815 miles of driving, the 1999 Porsche 911 gets a combined Avg MPG of 18.90 with a 0.22 MPG margin of error.

Any Engine Type 3.4L H6 GAS (27) H6 GAS (1) L6 GAS (1) Any Body Style Coupe (6) Any Submodel Carrera 4 (6) Carrera (22) Other (3)

Below you can see a distribution of the fuel-ups with 32 outliers (2.11%) removed.

Following shows the average MPG of each of the 31 vehicles in the system.

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• 911

  1999 Porsche 911 Carrera 3.4L H6 GAS Manual 6 Speed
  Added Jul 2019 • 71 Fuel-ups

  Property of DouglasVee

• 22.0 Avg MPG

• 996

  1999 Porsche 911 Carrera 4 3.4L H6 GAS Manual 6 Speed
  Added Aug 2020 • 190 Fuel-ups

  Property of rock996

• 14.7 Avg MPG

• My 911

  1999 Porsche 911 Carrera 3.4L H6 GAS Manual 6 Speed
  Added May 2021 • 11 Fuel-ups

  Property of edvaizey

• 18.8 Avg MPG

• My 911

  1999 Porsche 911 Carrera 3.4L H6 GAS Manual 6 Speed
  Added Aug 2021 • 5 Fuel-ups

  Property of Tippey764

• 22.7 Avg MPG

• My 911

  1999 Porsche 911 Carrera 4 3.4L H6 GAS Automatic 5 Speed
  Added Apr 2019 • 176 Fuel-ups

  Property of sregener

• 19.3 Avg MPG

• My 911

  1999 Porsche 911 Carrera 4 3.4L H6 GAS Manual 6 Speed
  Added Apr 2019 • 23 Fuel-ups

  Property of LRSA

• 17.6 Avg MPG

• My 911

  1999 Porsche 911 Carrera 3.4L H6 GAS Automatic 5 Speed
  Added Apr 2021 • 5 Fuel-ups

  Property of billtdi

• 15.9 Avg MPG

• Überbug

  1999 Porsche 911 Carrera 3.4L H6 GAS Standard 6 Speed
  Added Sep 2015 • 39 Fuel-ups

  Property of ohlins8990

• 19.1 Avg MPG

• Porsche

  1999 Porsche 911 Carrera 3.4L H6 GAS Manual 6 Speed
  Added Aug 2016 • 14 Fuel-ups

  Property of mikejwininger

• 16.3 Avg MPG

• Porsche 911

  1999 Porsche 911 Carrera 3.4L H6 GAS Standard 6 Speed
  Added Nov 2016 • 66 Fuel-ups

  Property of texasrph

• 20.6 Avg MPG

• Porsche 996

  1999 Porsche 911 Carrera 3.4L H6 GAS Standard 6 Speed Coupe
  Added Apr 2018 • 166 Fuel-ups

  Property of mumeh

• 17.6 Avg MPG

• Carrera

  1999 Porsche 911 Carrera 3.4L H6 GAS Automatic 5 Speed
  Added Sep 2016 • 54 Fuel-ups

  Property of bill944

• 20.1 Avg MPG

• My 911

  1999 Porsche 911 Carrera 3.4L H6 GAS Manual 6 Speed
  Added May 2021 • 7 Fuel-ups

  Property of LamonZak

• 19.7 Avg MPG

• Porsche

  1999 Porsche 911 Carrera 4 3,4L H6 GAS Standard 6 Speed
  Added May 2018 • 50 Fuel-ups

  Property of maggioli

• 18.7 Avg MPG

• Caroline

  1999 Porsche 911 Carrera 3.4L H6 GAS Manual 6 Speed Coupe
  Added Aug 2016 • 42 Fuel-ups

  Property of TDImiser

• 17.5 Avg MPG

• 996

  1999 Porsche 911 Carrera 3.4L H6 GAS Manual 6 Speed Coupe
  Added Feb 2015 • 79 Fuel-ups

  Property of FlatPower

• 21.8 Avg MPG

• My 911

  1999 Porsche 911 Carrera 3.4L H6 GAS Automatic 5 Speed
  Added Nov 2019 • 6 Fuel-ups

  Property of Jordanelliott

• 17.2 Avg MPG

• X1999 996 Carrera

  1999 Porsche 911 Carrera 3.4L H6 GAS Manual 6 Speed
  Added Mar 2015 • 137 Fuel-ups

  Property of MJCGT3

• 18.3 Avg MPG

• Porsche 996

  1999 Porsche 911 Carrera 3.4L H6 GAS Standard 6 Speed
  Added Sep 2016 • 44 Fuel-ups

  Property of RobMac

• 16.8 Avg MPG

• 911

  1999 Porsche 911 Carrera 3.4L H6 GAS Manual 6 Speed
  Added Jul 2019 • 7 Fuel-ups

  Property of wrxsti87

• 21.3 Avg MPG

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