Based on data from 26 vehicles, 1,778 fuel-ups and 468,640 miles of driving, the 2003 Lexus RX300 gets a combined Avg MPG of 18.24 with a 0.16 MPG margin of error.

Any Engine Type 3.0L V6 GAS (24) V6 GAS (1) Any Body Style Sport Utility (5) Any Submodel Base (24) Other (2)

Below you can see a distribution of the fuel-ups with 52 outliers (2.84%) removed.

Following shows the average MPG of each of the 26 vehicles in the system.

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• My RX300

  2003 Lexus RX300 3.0L V6 GAS Automatic 4 Speed
  Added Feb 2024 • 8 Fuel-ups

  Property of CHRISDELV

• 18.5 Avg MPG

• My RX300

  2003 Lexus RX300 3.0L V6 GAS Automatic 4 Speed
  Added Sep 2022 • 55 Fuel-ups

  Property of Chrisdotson

• 14.6 Avg MPG

• My RX300

  2003 Lexus RX300 3.0L V6 GAS Automatic 4 Speed
  Added Oct 2022 • 30 Fuel-ups

  Property of jim412

• 13.4 Avg MPG

• Lexus RX300

  2003 Lexus RX300 3.0L V6 GAS Automatic 4 Speed
  Added Oct 2020 • 40 Fuel-ups

  Property of gzarazua

• 16.4 Avg MPG

• RX300

  2003 Lexus RX300 3.0L V6 GAS Automatic 4 Speed
  Added Jun 2023 • 20 Fuel-ups

  Property of 23GreatySix

• 17.2 Avg MPG

• Western Voyage

  2003 Lexus RX300 3.0L V6 GAS Automatic 4 Speed Sport Utility
  Added Jan 2021 • 64 Fuel-ups

  Property of tmtfuelly

• 20.0 Avg MPG

• Lexus RX300

  2003 Lexus RX300 Custom Submodel
  Added Apr 2019 • 98 Fuel-ups

  Property of onfriday

• 17.5 Avg MPG

• My RX300

  2003 Lexus RX300 3.0L V6 GAS Automatic 4 Speed
  Added Aug 2022 • 8 Fuel-ups

  Property of sashalinn0425

• 17.4 Avg MPG

• RX 300

  2003 Lexus RX300 3.0L V6 GAS Automatic 4 Speed
  Added May 2019 • 240 Fuel-ups

  Property of dadsfun7

• 21.8 Avg MPG

• Lex

  2003 Lexus RX300 3.0L V6 GAS Automatic 4 Speed Sport Utility
  Added Jun 2011 • 364 Fuel-ups

  Property of gakrubble

• 18.5 Avg MPG

• RX300

  2003 Lexus RX300 3.0L V6 GAS Automatic 4 Speed
  Added Aug 2018 • 13 Fuel-ups

  Property of frankMO

• 18.6 Avg MPG

• RX300

  2003 Lexus RX300 3.0L V6 GAS Automatic 4 Speed Sport Utility
  Added Jun 2020 • 76 Fuel-ups

  Property of Evel_Knievel

• 18.5 Avg MPG

• Lexus

  2003 Lexus RX300 3.0L V6 GAS Automatic 4 Speed
  Added Mar 2017 • 172 Fuel-ups

  Property of pbkahn

• 16.4 Avg MPG

• RX300

  2003 Lexus RX300 3.0L V6 GAS Automatic 4 Speed
  Added May 2019 • 42 Fuel-ups

  Property of wclccy

• 17.7 Avg MPG

• Lexus

  2003 Lexus RX300 3.0L V6 GAS Automatic 4 Speed Sport Utility
  Added Jun 2019 • 15 Fuel-ups

  Property of tmnichols13

• 19.5 Avg MPG

• My RX300

  2003 Lexus RX300 3.0L V6 GAS Automatic 4 Speed
  Added Feb 2017 • 6 Fuel-ups

  Property of warrenlee888

• 18.2 Avg MPG

• My RX300

  2003 Lexus RX300 3.0L V6 GAS Automatic 4 Speed
  Added Jun 2018 • 55 Fuel-ups

  Property of Huestershooter

• 19.4 Avg MPG

• RX300

  2003 Lexus RX300 3.0L V6 GAS Automatic 4 Speed
  Added Apr 2017 • 253 Fuel-ups

  Property of bachteb

• 20.2 Avg MPG

• Lexus

  2003 Lexus RX300 3.0L V6 GAS Automatic 4 Speed
  Added Mar 2018 • 33 Fuel-ups

  Property of midippel

• 20.7 Avg MPG

• Lexus RX300

  2003 Lexus RX300 3.0L V6 GAS Automatic 4 Speed
  Added Sep 2016 • 11 Fuel-ups

  Property of aired

• 26.8 Avg MPG

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