Based on data from 59 vehicles, 3,332 fuel-ups and 844,598 miles of driving, the 2003 Lexus IS300 gets a combined Avg MPG of 19.49 with a 0.10 MPG margin of error.

Any Engine Type 3.0L L6 GAS (52) L6 GAS (7) Any Body Style Sedan (13) Wagon (4) Any Submodel Sportcross (6) Base (46) Other (7)

Below you can see a distribution of the fuel-ups with 154 outliers (4.42%) removed.

Following shows the average MPG of each of the 59 vehicles in the system.

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• Lucy

  2003 Lexus IS300 3.0L L6 GAS Standard 5 Speed Sedan
  Added Jul 2015 • 29 Fuel-ups

  Property of rdelrosa

• 18.8 Avg MPG

• Lexus

  2003 Lexus IS300 3.0L L6 GAS Automatic 5 Speed
  Added Sep 2016 • 34 Fuel-ups

  Property of pepelucho

• 21.1 Avg MPG

• My IS300

  2003 Lexus IS300 3.0L L6 GAS Automatic 5 Speed
  Added Mar 2016 • 8 Fuel-ups

  Property of luckva

• 21.6 Avg MPG

• Daily IS

  2003 Lexus IS300 3.0L L6 GAS Standard 5 Speed Sedan
  Added May 2015 • 42 Fuel-ups

  Property of kidd

• 18.7 Avg MPG

• Lexus

  2003 Lexus IS300 3.0L L6 GAS Automatic 5 Speed Sedan
  Added Aug 2019 • 287 Fuel-ups

  Property of lindenl

• 19.8 Avg MPG

• rexus

  2003 Lexus IS300 3.0L L6 GAS Standard 5 Speed Sedan
  Added Nov 2013 • 42 Fuel-ups

  Property of buttdyno

• 21.5 Avg MPG

• Lexus

  2003 Lexus IS300 3.0L L6 GAS Standard 5 Speed
  Added Mar 2017 • 48 Fuel-ups

  Property of Rod37

• 26.1 Avg MPG

• ICE 3

  2003 Lexus IS300 3.0L GAS L6 Standard 5 Sedan (4 Door)
  Added Aug 2014 • 27 Fuel-ups

  Property of HeavenCent

• 23.8 Avg MPG

• Lexus

  2003 Lexus IS300 3.0L L6 GAS Standard 5 Speed
  Added Sep 2016 • 200 Fuel-ups

  Property of hfog

• 19.9 Avg MPG

• White IS 300

  2003 Lexus IS300 GAS L6
  Added Jun 2013 • 52 Fuel-ups

  Property of Danndom

• 22.4 Avg MPG

• 2003 LEXUS IS 300

  2003 Lexus IS300 3.0L L6 GAS
  Added Mar 2010 • 167 Fuel-ups

  Property of brookepusey

• 18.3 Avg MPG

• Dad's IS300

  2003 Lexus IS300 GAS L6
  Added Apr 2014 • 3 Fuel-ups

  Property of Utilitarian

• 19.5 Avg MPG

• Ye olde Lexus

  2003 Lexus IS300 GAS L6
  Added Mar 2013 • 13 Fuel-ups

  Property of bret791

• 23.4 Avg MPG

• 2003 IS 300

  2003 Lexus IS300 3.0L L6 GAS Automatic 5 Speed
  Added Mar 2017 • 95 Fuel-ups

  Property of EWW55

• 21.8 Avg MPG

• My Lexus

  2003 Lexus IS300 GAS L6
  Added Aug 2011 • 27 Fuel-ups

  Property of joeyee

• 19.1 Avg MPG

• Yellow Lexus

  2003 Lexus IS300 GAS L6
  Added Aug 2013 • 7 Fuel-ups

  Property of golfy

• 21.3 Avg MPG

• Tuuuuurbo

  2003 Lexus IS300 GAS L6
  Added May 2011 • 15 Fuel-ups

  Property of jonnzy

• 13.8 Avg MPG

• Lexus

  2003 Lexus IS300 3.0L L6 GAS Automatic 5 Speed
  Added Sep 2016 • 5 Fuel-ups

  Property of DbassAce

• 20.3 Avg MPG

• Waldo's Lexus IS300

  2003 Lexus IS300 GAS L6
  Added Apr 2011 • 3 Fuel-ups

  Property of WaldoJ

• 20.5 Avg MPG

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