Based on data from 20 vehicles, 894 fuel-ups and 240,156 miles of driving, the 2000 Mercury Grand Marquis gets a combined Avg MPG of 19.99 with a 0.21 MPG margin of error.

Any Engine Type 4.6L V8 GAS (19) V8 GAS (1) Any Body Style Sedan (7) Any Submodel GS (6) LS (13) Other (1)

Below you can see a distribution of the fuel-ups with 64 outliers (6.68%) removed.

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

• Bertha

  2000 Mercury Grand Marquis LS 4.6L V8 GAS Automatic 4 Speed Sedan
  Added Apr 2018 • 77 Fuel-ups

  Property of hoozitthere

• 24.9 Avg MPG

• Mercury

  2000 Mercury Grand Marquis GS 4.6L V8 GAS Automatic 4 Speed Sedan
  Added Aug 2023 • 14 Fuel-ups

  Property of NAILS

• 18.8 Avg MPG

• Grand Marquis LS

  2000 Mercury Grand Marquis LS 4.6L V8 GAS Automatic 4 Speed Sedan
  Added Aug 2023 • 4 Fuel-ups

  Property of Goodcitizen

• 19.5 Avg MPG

• Grand Marquis

  2000 Mercury Grand Marquis LS 4.6L V8 GAS Automatic 4 Speed
  Added Jun 2018 • 146 Fuel-ups

  Property of mercdude

• 20.6 Avg MPG

• Old Grand Marquis

  2000 Mercury Grand Marquis GS 4.6L V8 GAS Automatic 4 Speed
  Added Nov 2022 • 17 Fuel-ups

  Property of LuckyJarms

• 17.4 Avg MPG

• My Grand Marquis

  2000 Mercury Grand Marquis LS 4.6L V8 GAS Automatic 4 Speed
  Added Mar 2022 • 14 Fuel-ups

  Property of Redey1290

• 22.2 Avg MPG

• Grandmaquar

  2000 Mercury Grand Marquis LS 4.6L V8 GAS Automatic 4 Speed Sedan
  Added May 2019 • 7 Fuel-ups

  Property of FuedinWagon

• 83.4 Avg MPG

• My Grand Marquis

  2000 Mercury Grand Marquis LS 4.6L V8 GAS Automatic 4 Speed
  Added Apr 2021 • 24 Fuel-ups

  Property of chahar

• 15.4 Avg MPG

• My Grand Marquis

  2000 Mercury Grand Marquis LS 4.6L V8 GAS Automatic 4 Speed
  Added Mar 2021 • 8 Fuel-ups

  Property of chahar

• 4.5 Avg MPG

• Cruiser

  2000 Mercury Grand Marquis GS 4.6L V8 GAS Automatic 4 Speed Sedan
  Added Jul 2020 • 8 Fuel-ups

  Property of Reidordie

• 19.4 Avg MPG

• Mercury

  2000 Mercury Grand Marquis LS 4.6L V8 GAS Automatic 4 Speed
  Added Aug 2016 • 199 Fuel-ups

  Property of Elbert

• 21.6 Avg MPG

• My Grand Marquis

  2000 Mercury Grand Marquis LS 4.6L V8 GAS Automatic 4 Speed
  Added Jan 2020 • 3 Fuel-ups

  Property of Amanda0913

• 22.1 Avg MPG

• My Grand Marquis

  2000 Mercury Grand Marquis LS 4.6L V8 GAS Automatic 4 Speed
  Added Aug 2019 • 5 Fuel-ups

  Property of powell1983

• 23.4 Avg MPG

• Shit Mobile

  2000 Mercury Grand Marquis GS 4.6L V8 GAS Automatic 4 Speed
  Added Nov 2018 • 33 Fuel-ups

  Property of SaverMaker

• 16.9 Avg MPG

• Grand Marquee

  2000 Mercury Grand Marquis LS 4.6L V8 GAS Automatic 4 Speed
  Added Aug 2016 • 194 Fuel-ups

  Property of igroenert

• 18.3 Avg MPG

• My Grand Marquis

  2000 Mercury Grand Marquis GS 4.6L V8 GAS Automatic 4 Speed
  Added Aug 2016 • 7 Fuel-ups

  Property of tonyvicky

• 13.2 Avg MPG

• My Grand Marquis

  2000 Mercury Grand Marquis GS 4.6L V8 GAS Automatic 4 Speed
  Added Feb 2016 • 8 Fuel-ups

  Property of h1e9n9r7y

• 16.8 Avg MPG

• My Grand Marquis

  2000 Mercury Grand Marquis GAS V8
  Added Feb 2012 • 8 Fuel-ups

  Property of unoduck

• 14.2 Avg MPG

• 2000 Marquis

  2000 Mercury Grand Marquis LS 4.6L V8 GAS Automatic 4 Speed Sedan
  Added Apr 2018 • 165 Fuel-ups

  Property of Cyber-Wizard

• 21.9 Avg MPG

• 2000 Marquis

  2000 Mercury Grand Marquis LS 4.6L V8 GAS Automatic 4 Speed Sedan
  Added Mar 2021 • 165 Fuel-ups

  Property of Cyber-Wizard

• 21.9 Avg MPG