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1999 Porsche 911 MPG

Based on data from 16 vehicles, 597 fuel-ups and 140,899 miles of driving, the 1999 Porsche 911 gets a combined Avg MPG of 20.56 with a 0.25 MPG margin of error.

Below you can see a distribution of the fuel-ups with 33 outliers (5.24%) removed.

Following shows the average MPG of each of the 16 vehicles in the system.

1999 Porsche 911s For Sale Nearby

  • Po'boy

    1999 Porsche 911 Carrera 3.4L H6 GAS Standard 6 Speed Coupe
    Added Jun 2017 • 19 Fuel-ups

    Property of ChrisTenrten

  • 21.9 Avg MPG
  • Porsche 996

    1999 Porsche 911 Carrera 3.4L H6 GAS Standard 6 Speed
    Added Sep 2016 • 29 Fuel-ups

    Property of RobMac

  • 17.3 Avg MPG
  • Überbug

    1999 Porsche 911 Carrera 3.4L H6 GAS Standard 6 Speed
    Added Sep 2015 • 30 Fuel-ups

    Property of ohlins8990

  • 19.2 Avg MPG
  • Porsche 911

    1999 Porsche 911 Carrera 3.4L H6 GAS Standard 6 Speed
    Added Nov 2016 • 54 Fuel-ups

    Property of texasrph

  • 20.7 Avg MPG
  • 996 Carrera

    1999 Porsche 911 Carrera 3.4L GAS H6 Standard 6 Coupe (2 Door)
    Added Mar 2015 • 89 Fuel-ups

    Property of MJCGT3

  • 19.2 Avg MPG
  • Caroline

    1999 Porsche 911 Carrera 3.4L H6 GAS Standard 6 Speed Coupe
    Added Aug 2016 • 18 Fuel-ups

    Property of TDImiser

  • 17.9 Avg MPG
  • Porsche

    1999 Porsche 911 Carrera 3.4L H6 GAS Standard 6 Speed
    Added Aug 2016 • 7 Fuel-ups

    Property of mikejwininger

  • 21.6 Avg MPG
  • Carrera

    1999 Porsche 911 Carrera 3.4L H6 GAS Automatic 5 Speed
    Added Sep 2016 • 45 Fuel-ups

    Property of bill944

  • 20.5 Avg MPG
  • 996

    1999 Porsche 911 Carrera 3.4L H6 GAS Standard 6 Speed Coupe
    Added Feb 2015 • 57 Fuel-ups

    Property of FlatPower

  • 22.5 Avg MPG
  • 1. c2c

    1999 Porsche 911 Carrera 3.4L H6 GAS Standard 6 Speed
    Added Mar 2017 • 25 Fuel-ups

    Property of lbkNhubert

  • 22.1 Avg MPG
  • Porsche

    1999 Porsche 911 Cabriolet
    Added Mar 2017 • 152 Fuel-ups

    Property of BriarReed

  • 22.3 Avg MPG
  • Black Beauty

    1999 Porsche 911 Carrera 3.4L H6 GAS Standard 6 Speed Coupe
    Added Mar 2015 • 66 Fuel-ups

    Property of Rex1585

  • 21.5 Avg MPG
  • Sally

    1999 Porsche 911 Carrera 4 3.4L GAS H6 Standard 6 Coupe (2 Door)
    Added Jun 2014 • 37 Fuel-ups

    Property of jwhat

  • 22.8 Avg MPG
  • Porsche

    1999 Porsche 911 GAS L6
    Added Sep 2011 • 14 Fuel-ups

    Property of pchatter

  • 21.4 Avg MPG
  • Porsche

    1999 Porsche 911 Carrera
    Added Jan 2014 • 4 Fuel-ups

    Property of xtr1283

  • 19.0 Avg MPG
  • 911

    1999 Porsche 911 GAS H6
    Added Jun 2009 • 3 Fuel-ups

    Property of FnJ

  • 19.7 Avg MPG

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i use sta-bil marine formula ethanol treatment. 1oz. per 10... ...

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