Based on data from 20 vehicles, 2,814 fuel-ups and 825,290 miles of driving, the 2009 Mercury Mariner gets a combined Avg MPG of 24.61 with a 0.28 MPG margin of error.

Any Engine Type 2.5L L4 ELECTRIC/GAS (4) 2.5L L4 FULL HYBRID EV-GAS (FHEV) (1) 2.5L L4 GAS (5) 3.0L V6 GAS (8) L4 ELECTRIC/GAS (1) L4 GAS (1) Any Body Style Sport Utility (6) Any Submodel Base (3) Hybrid (5) Premier (10) Other (2)

Below you can see a distribution of the fuel-ups with 27 outliers (0.95%) removed.

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

• The Red Devil

  2009 Mercury Mariner Premier 3.0L V6 GAS Automatic 6 Speed
  Added Sep 2020 • 204 Fuel-ups

  Property of BLewis

• 21.2 Avg MPG

• White Satin

  2009 Mercury Mariner 3.0L V6 GAS Automatic 6 Speed
  Added May 2016 • 261 Fuel-ups

  Property of cobranick

• 18.7 Avg MPG

• Marinette

  2009 Mercury Mariner Premier 2.5L L4 GAS Automatic 6 Speed Sport Utility
  Added May 2021 • 113 Fuel-ups

  Property of Dodge99

• 20.7 Avg MPG

• Mariner

  2009 Mercury Mariner Premier 3.0L V6 GAS Automatic 6 Speed Sport Utility
  Added Dec 2021 • 71 Fuel-ups

  Property of agarcia53

• 19.1 Avg MPG

• Tex

  2009 Mercury Mariner Premier 2.5L L4 GAS Automatic 6 Speed Sport Utility
  Added Jan 2022 • 56 Fuel-ups

  Property of Usafrider

• 22.2 Avg MPG

• My Mariner

  2009 Mercury Mariner Hybrid 2.5L L4 FULL HYBRID EV-GAS (FHEV) Automatic CVT
  Added Oct 2023 • 3 Fuel-ups

  Property of mcoondog71

• 42.7 Avg MPG

• Mercury Mariner

  2009 Mercury Mariner Premier 3.0L V6 GAS Automatic 6 Speed
  Added Dec 2016 • 256 Fuel-ups

  Property of NLNorman

• 21.6 Avg MPG

• Mariner

  2009 Mercury Mariner Premier 3.0L V6 GAS Automatic 6 Speed Sport Utility
  Added Sep 2021 • 27 Fuel-ups

  Property of UranuX

• 15.8 Avg MPG

• Mercury Mariner

  2009 Mercury Mariner Premier 2.5L L4 GAS Automatic 6 Speed
  Added Mar 2017 • 293 Fuel-ups

  Property of AlexHWilson

• 27.4 Avg MPG

• The G Wagon

  2009 Mercury Mariner Premier 2.5L L4 GAS Automatic 6 Speed
  Added May 2018 • 74 Fuel-ups

  Property of cmathison0

• 16.7 Avg MPG

• Buckley

  2009 Mercury Mariner 3.0L V6 GAS Automatic 6 Speed
  Added Jan 2018 • 247 Fuel-ups

  Property of kirrras

• 19.8 Avg MPG

• Mariner

  2009 Mercury Mariner Premier 3.0L V6 GAS Automatic 6 Speed
  Added Aug 2020 • 24 Fuel-ups

  Property of maxrfinch

• 22.2 Avg MPG

• Mercury mariner

  2009 Mercury Mariner Hybrid 2.5L L4 ELECTRIC/GAS Automatic CVT
  Added Aug 2016 • 399 Fuel-ups

  Property of katelin42

• 28.2 Avg MPG

• Maurice

  2009 Mercury Mariner Hybrid 2.5L L4 ELECTRIC/GAS Automatic CVT
  Added Mar 2011 • 254 Fuel-ups

  Property of Zeniq

• 28.9 Avg MPG

• 2009 Mercury Mariner Hybrid 2WD 4Cyl

  2009 Mercury Mariner Hybrid 2.5L L4 ELECTRIC/GAS Automatic CVT Sport Utility
  Added Jun 2013 • 170 Fuel-ups

  Property of ericm147

• 28.1 Avg MPG

• My Mariner

  2009 Mercury Mariner Premier 3.0L V6 GAS Automatic 6 Speed
  Added Nov 2017 • 7 Fuel-ups

  Property of jcb5391

• 20.7 Avg MPG

• The Mariner

  2009 Mercury Mariner 2.5L L4 GAS Automatic 6 Speed Sport Utility
  Added Dec 2014 • 51 Fuel-ups

  Property of huffa12

• 24.6 Avg MPG

• Mariner Hybrid

  2009 Mercury Mariner Hybrid 2.5L L4 ELECTRIC/GAS Automatic CVT
  Added Sep 2016 • 484 Fuel-ups

  Property of dpasiak

• 32.8 Avg MPG

• 2009 Mercury Mariner

  2009 Mercury Mariner GAS L4
  Added Jan 2013 • 58 Fuel-ups

  Property of DFR

• 25.9 Avg MPG

• Mariner Hybrid

  2009 Mercury Mariner HYBRID L4
  Added Jul 2013 • 6 Fuel-ups

  Property of Appollo1298

• 25.7 Avg MPG