Based on data from 18 vehicles, 764 fuel-ups and 200,916 miles of driving, the 2004 Mercury Mountaineer gets a combined Avg MPG of 15.14 with a 0.19 MPG margin of error.

Any Engine Type 4.0L V6 FLEX (1) 4.0L V6 GAS (9) 4.6L V8 GAS (2) V6 FLEX (1) V6 GAS (2) V8 GAS (1) Any Body Style Sport Utility (8) Any Submodel Base (7) Premier (7) Other (4)

Below you can see a distribution of the fuel-ups with 141 outliers (15.58%) removed.

Following shows the average MPG of each of the 18 vehicles in the system.

• Mercury Mountaineer

  2004 Mercury Mountaineer Automatic 5 Speed Sport Utility
  Added Jul 2018 • 19 Fuel-ups

  Property of bootlucky

• 14.2 Avg MPG

• 2004 Mercury Mountaineer

  2004 Mercury Mountaineer 4.0L V6 GAS Automatic 5 Speed Sport Utility
  Added Sep 2012 • 150 Fuel-ups

  Property of Gio26NJ

• 15.1 Avg MPG

• Mercury Mountaineer

  2004 Mercury Mountaineer Premier 4.0L V6 GAS Automatic 5 Speed Sport Utility
  Added May 2019 • 16 Fuel-ups

  Property of JTClark2

• 15.7 Avg MPG

• My Mountaineer

  2004 Mercury Mountaineer 4.0L V6 GAS Automatic 5 Speed
  Added Sep 2019 • 5 Fuel-ups

  Property of RJBeard7

• 17.0 Avg MPG

• David's Mountaineer

  2004 Mercury Mountaineer Premier 4.0L V6 GAS Automatic 5 Speed Sport Utility
  Added Nov 2015 • 160 Fuel-ups

  Property of broncofan

• 19.2 Avg MPG

• My Mountaineer

  2004 Mercury Mountaineer Premier 4.6L V8 GAS Automatic 5 Speed
  Added Jul 2017 • 4 Fuel-ups

  Property of cabrickley

• 14.3 Avg MPG

• Mountaineer

  2004 Mercury Mountaineer 4.6L V8 GAS Automatic 5 Speed Sport Utility
  Added Mar 2015 • 80 Fuel-ups

  Property of sysiphus

• 15.0 Avg MPG

• Mountaineer

  2004 Mercury Mountaineer Premier 4.0L V6 GAS Automatic 5 Speed Sport Utility
  Added Dec 2016 • 6 Fuel-ups

  Property of jo6626

• 13.8 Avg MPG

• My Mountaineer

  2004 Mercury Mountaineer Premier 4.0L V6 GAS Automatic 5 Speed
  Added Oct 2015 • 21 Fuel-ups

  Property of Shoop

• 17.4 Avg MPG

• Da Mountaineer

  2004 Mercury Mountaineer 4.0L V6 GAS Automatic 5 Speed
  Added Sep 2016 • 21 Fuel-ups

  Property of flipfultz

• 21.1 Avg MPG

• Mountaineer

  2004 Mercury Mountaineer Premier 4.0L V6 GAS Automatic 5 Speed Sport Utility
  Added Oct 2017 • 162 Fuel-ups

  Property of mbirkett

• 19.3 Avg MPG

• My Mountaineer

  2004 Mercury Mountaineer 4.0L V6 GAS Automatic 5 Sport Utility (4 Door)
  Added Aug 2015 • 9 Fuel-ups

  Property of mkrivanek

• 21.8 Avg MPG

• Marty

  2004 Mercury Mountaineer GAS V8
  Added Jun 2013 • 30 Fuel-ups

  Property of SaraXO

• 14.0 Avg MPG

• Mountie

  2004 Mercury Mountaineer GAS V6
  Added Aug 2012 • 51 Fuel-ups

  Property of mt602ct

• 14.3 Avg MPG

• Mountaineer

  2004 Mercury Mountaineer 4.0L FLEX V6 Automatic 5 Sport Utility (4 Door)
  Added Jul 2014 • 110 Fuel-ups

  Property of jaggededge

• 15.4 Avg MPG

• Mountaineer

  2004 Mercury Mountaineer GAS V6
  Added Feb 2014 • 11 Fuel-ups

  Property of PatsBsFan

• 14.7 Avg MPG

• Monty

  2004 Mercury Mountaineer FLEX V6
  Added Jun 2013 • 3 Fuel-ups

  Property of cross1010

• 14.3 Avg MPG

• Tim's Mercury

  2004 Mercury Mountaineer Premier Automatic 5 Speed Sport Utility
  Added Dec 2017 • 163 Fuel-ups

  Property of DevilDoc82

• 16.2 Avg MPG