Based on data from 20 vehicles, 901 fuel-ups and 246,143 miles of driving, the 1999 Lexus LS400 gets a combined Avg MPG of 18.10 with a 0.31 MPG margin of error.

Any Engine Type 4.0L V8 GAS (17) V8 GAS (3) Any Body Style Sedan (9) Any Submodel Base (17) Other (3)

Below you can see a distribution of the fuel-ups with 43 outliers (4.56%) removed.

Following shows the average MPG of each of the 20 vehicles in the system.

• Lexi

  1999 Lexus LS400 4.0L V8 GAS Automatic 5 Speed Sedan
  Added May 2023 • 23 Fuel-ups

  Property of Metalstorm

• 17.6 Avg MPG

• My LS400

  1999 Lexus LS400 4.0L V8 GAS Automatic 5 Speed
  Added Aug 2022 • 112 Fuel-ups

  Property of adavidson32

• 23.1 Avg MPG

• Lexus LS400

  1999 Lexus LS400 4.0L V8 GAS Automatic 5 Speed Sedan
  Added Nov 2021 • 35 Fuel-ups

  Property of dpang89

• 18.6 Avg MPG

• 1999 Lexus LS400 (1UZ-FE)

  1999 Lexus LS400 4.0L V8 GAS Automatic 5 Speed Sedan
  Added Apr 2019 • 26 Fuel-ups

  Property of RedX2

• 17.3 Avg MPG

• My LS400

  1999 Lexus LS400 4.0L V8 GAS Automatic 5 Speed
  Added Oct 2021 • 43 Fuel-ups

  Property of cahemberger

• 21.0 Avg MPG

• My LS400

  1999 Lexus LS400 4.0L V8 GAS Automatic 5 Speed
  Added Nov 2019 • 62 Fuel-ups

  Property of greg_s

• 17.0 Avg MPG

• My LS400

  1999 Lexus LS400 4.0L V8 GAS Automatic 5 Speed
  Added Jul 2022 • 10 Fuel-ups

  Property of Alshehhi

• 17.1 Avg MPG

• Lexus LS400

  1999 Lexus LS400 4.0L V8 GAS Automatic 5 Speed Sedan
  Added Dec 2021 • 12 Fuel-ups

  Property of th3cavalry

• 17.3 Avg MPG

• Green

  1999 Lexus LS400 4.0L V8 GAS Automatic 5 Speed Sedan
  Added Jun 2016 • 130 Fuel-ups

  Property of darekxyz

• 22.2 Avg MPG

• Lexus LS400

  1999 Lexus LS400 4.0L V8 GAS Automatic 5 Speed
  Added Sep 2016 • 104 Fuel-ups

  Property of sumodog

• 16.8 Avg MPG

• Kayako

  1999 Lexus LS400 4.0L V8 GAS Automatic 5 Speed Sedan
  Added May 2019 • 11 Fuel-ups

  Property of DUBS2328

• 19.3 Avg MPG

• 1999 LS400

  1999 Lexus LS400 4.0L V8 GAS Automatic 5 Speed Sedan
  Added Apr 2019 • 72 Fuel-ups

  Property of toddio

• 19.7 Avg MPG

• Lexus LS400

  1999 Lexus LS400 4.0L V8 GAS Automatic 5 Speed
  Added Mar 2017 • 317 Fuel-ups

  Property of 4Alphaone

• 20.0 Avg MPG

• Lexus LS 400

  1999 Lexus LS400 4.0L V8 GAS Automatic 5 Speed
  Added Sep 2017 • 52 Fuel-ups

  Property of vantage_007

• 21.6 Avg MPG

• LS400 UCF20L-AEAGKW

  1999 Lexus LS400 4,0L V8 GAS Automatic 5 Speed Sedan
  Added Sep 2018 • 18 Fuel-ups

  Property of YonnyMestampo

• 21.4 Avg MPG

• Lexus

  1999 Lexus LS400 4.0L V8 GAS Automatic 5 Speed Sedan
  Added Nov 2017 • 213 Fuel-ups

  Property of ibyvar

• 12.4 Avg MPG

• Lexus LS 400

  1999 Lexus LS400 4.0L V8 GAS Automatic 5 Speed
  Added Jan 2017 • 33 Fuel-ups

  Property of gliske

• 27.1 Avg MPG

• The Ls

  1999 Lexus LS400 GAS V8
  Added Jan 2014 • 3 Fuel-ups

  Property of simox

• 19.3 Avg MPG

• Liv

  1999 Lexus LS400 GAS V8
  Added Aug 2013 • 11 Fuel-ups

  Property of greatgearu

• 18.9 Avg MPG

• Lexus LS400 4.0 V8 Auto

  1999 Lexus LS400 GAS V8
  Added Oct 2012 • 110 Fuel-ups

  Property of stevebedford

• 17.2 Avg MPG