Based on data from 43 vehicles, 5,841 fuel-ups and 1,578,787 miles of driving, the 2008 Mercury Mariner gets a combined Avg MPG of 23.86 with a 0.15 MPG margin of error.

Any Engine Type 2.3L L4 ELECTRIC/GAS (15) 2.3L L4 FULL HYBRID EV-GAS (FHEV) (2) 2.3L L4 GAS (3) 3.0L V6 GAS (14) L4 ELECTRIC/GAS (1) L4 GAS (3) V6 GAS (4) Any Body Style Sport Utility (16) Cab & Chassis (1) Any Submodel Premier (8) Base (11) Hybrid (17) Other (7)

Below you can see a distribution of the fuel-ups with 154 outliers (2.57%) removed.

Following shows the average MPG of each of the 43 vehicles in the system.

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• Mercury Mariner

  2008 Mercury Mariner 3.0L V6 GAS Automatic 4 Speed Sport Utility
  Added Feb 2018 • 72 Fuel-ups

  Property of Twyman

• 14.6 Avg MPG

• Matty

  2008 Mercury Mariner Hybrid 2.3L L4 ELECTRIC/GAS Automatic CVT
  Added Aug 2019 • 33 Fuel-ups

  Property of jstew06

• 26.5 Avg MPG

• Mercury Mariner

  2008 Mercury Mariner 3.0L V6 GAS Automatic 4 Speed
  Added Apr 2017 • 29 Fuel-ups

  Property of Bromblebee

• 21.4 Avg MPG

• Mariner

  2008 Mercury Mariner Premier 3.0L V6 GAS Automatic 4 Speed Sport Utility
  Added Jul 2018 • 82 Fuel-ups

  Property of gan0U5VLLV75vxx8

• 21.4 Avg MPG

• BlackBeauty

  2008 Mercury Mariner Hybrid 2.3L L4 ELECTRIC/GAS Automatic CVT Sport Utility
  Added Jul 2009 • 512 Fuel-ups

  Property of DBrueni

• 31.1 Avg MPG

• Mariner

  2008 Mercury Mariner Hybrid 2.3L L4 ELECTRIC/GAS Automatic CVT
  Added Aug 2016 • 684 Fuel-ups

  Property of GaryKlein

• 25.2 Avg MPG

• My Mariner

  2008 Mercury Mariner 3.0L V6 GAS Automatic 4 Speed
  Added Mar 2018 • 53 Fuel-ups

  Property of smitty5823

• 17.6 Avg MPG

• B Mariner

  2008 Mercury Mariner Hybrid 2.3L L4 ELECTRIC/GAS Automatic CVT Sport Utility
  Added Aug 2018 • 380 Fuel-ups

  Property of wrshelby

• 27.0 Avg MPG

• Mariner

  2008 Mercury Mariner GAS V6
  Added May 2011 • 533 Fuel-ups

  Property of 4nought6

• 20.6 Avg MPG

• My Mariner

  2008 Mercury Mariner 2.3L L4 GAS Automatic 4 Speed
  Added Sep 2017 • 55 Fuel-ups

  Property of Apnic

• 19.2 Avg MPG

• Mariner

  2008 Mercury Mariner 3.0L V6 GAS Automatic 4 Speed Sport Utility
  Added Sep 2018 • 5 Fuel-ups

  Property of Banjoman0

• 28.7 Avg MPG

• My Mariner

  2008 Mercury Mariner 2.3L L4 GAS Automatic 4 Speed
  Added Oct 2017 • 4 Fuel-ups

  Property of krissyon

• 0.6 Avg MPG

• Mercury Mariner Hybrid

  2008 Mercury Mariner Hybrid 2.3L L4 ELECTRIC/GAS Automatic CVT
  Added Mar 2017 • 188 Fuel-ups

  Property of ajehlert

• 30.9 Avg MPG

• Silver Bullet

  2008 Mercury Mariner GAS L4
  Added Sep 2013 • 78 Fuel-ups

  Property of Diger

• 21.9 Avg MPG

• Mariner

  2008 Mercury Mariner Hybrid 2.3L L4 ELECTRIC/GAS Automatic CVT
  Added Oct 2016 • 14 Fuel-ups

  Property of slanted

• 36.9 Avg MPG

• Mercury Mariner

  2008 Mercury Mariner Hybrid 2.3L L4 ELECTRIC/GAS Automatic CVT Sport Utility
  Added Feb 2022 • 161 Fuel-ups

  Property of FrancoBU

• 24.8 Avg MPG

• Rime of the Ancient II

  2008 Mercury Mariner GAS V6
  Added Jun 2013 • 53 Fuel-ups

  Property of TomW

• 26.6 Avg MPG

• mariner hybrid

  2008 Mercury Mariner Hybrid 2.3L ELECTRIC/GAS L4 Automatic 4 Sport Utility (4 Door)
  Added Jan 2013 • 168 Fuel-ups

  Property of jasondx1

• 29.8 Avg MPG

• Mariner

  2008 Mercury Mariner GAS L4
  Added Mar 2011 • 215 Fuel-ups

  Property of ccorwin08

• 24.0 Avg MPG

• Mariner

  2008 Mercury Mariner 3.0L V6 GAS Automatic 4 Speed Sport Utility
  Added Dec 2017 • 83 Fuel-ups

  Property of Sovereign

• 18.7 Avg MPG

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