Based on data from 113 vehicles, 7,979 fuel-ups and 2,091,428 miles of driving, the 2006 Subaru Legacy gets a combined Avg MPG of 21.64 with a 0.11 MPG margin of error.

Any Engine Type 2.5L H4 GAS (61) GAS (2) H4 GAS (34) H4 LPG (1) H6 GAS (4) L4 GAS (1) V4 GAS (1) Any Body Style Sedan (21) Wagon (20) Any Submodel Base (2) 2.0R (8) GT spec.B (9) 2.5i Limited (12) 2.5i (18) GT (26) Other (38)

Below you can see a distribution of the fuel-ups with 149 outliers (1.83%) removed.

Following shows the average MPG of each of the 113 vehicles in the system.

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• My Legacy

  2006 Subaru Legacy 2.5i 2.5L H4 GAS Automatic 4 Speed
  Added May 2025 • 39 Fuel-ups

  Property of JosephineCessna

• 19.5 Avg MPG

• My Legacy

  2006 Subaru Legacy GT spec.B H4 GAS Automatic 5 Speed Wagon
  Added Jun 2024 • 55 Fuel-ups

  Property of devjoshi

• 22.8 Avg MPG

• The Blue

  2006 Subaru Legacy 2.0R GAS Manual 5 Speed
  Added Apr 2024 • 28 Fuel-ups

  Property of Grandsatsuma

• 20.5 Avg MPG

• My Legacy

  2006 Subaru Legacy 2.5i Limited 2.5L H4 GAS Automatic 4 Speed
  Added Dec 2017 • 167 Fuel-ups

  Property of V8Music

• 23.6 Avg MPG

• Yuki

  2006 Subaru Legacy 2.5i Limited 2.5L H4 GAS Automatic 4 Speed
  Added Aug 2023 • 48 Fuel-ups

  Property of gordon111

• 25.2 Avg MPG

• 41 Legacy AT LPG Michal

  2006 Subaru Legacy 2.5i 2,5L H4 GAS Automatic 4 Speed
  Added Feb 2025 • 20 Fuel-ups

  Property of xpaulus

• 23.5 Avg MPG

• My Legacy

  2006 Subaru Legacy GT 2.5L H4 GAS Manual 5 Speed
  Added Mar 2025 • 14 Fuel-ups

  Property of Jcp385

• 25.8 Avg MPG

• Subie

  2006 Subaru Legacy GT 2.5L H4 GAS Automatic 5 Speed
  Added May 2021 • 15 Fuel-ups

  Property of Spack

• 20.8 Avg MPG

• Legacy

  2006 Subaru Legacy 2.0R H4 GAS Manual 5 Speed Wagon
  Added Mar 2019 • 214 Fuel-ups

  Property of Emsi

• 20.7 Avg MPG

• Legacy

  2006 Subaru Legacy GT spec.B H4 GAS Automatic 5 Speed Wagon
  Added May 2023 • 23 Fuel-ups

  Property of KompressorRaphi

• 22.0 Avg MPG

• Subaru Legacy Wagon

  2006 Subaru Legacy 2.5i Limited 2.5L H4 GAS Automatic 4 Speed Wagon
  Added Apr 2019 • 219 Fuel-ups

  Property of karlseifert

• 22.5 Avg MPG

• Lynn's

  2006 Subaru Legacy 2.5i 2.5L H4 GAS Automatic 4 Speed Sedan
  Added Nov 2017 • 116 Fuel-ups

  Property of lsuth

• 23.0 Avg MPG

• My Legacy

  2006 Subaru Legacy 2.5i 2.5L H4 GAS Automatic 4 Speed
  Added Mar 2024 • 19 Fuel-ups

  Property of potatoworld

• 21.3 Avg MPG

• 2006 Subaru Legacy Sedan

  2006 Subaru Legacy 2.5i Limited 2.5L H4 GAS Automatic 4 Speed
  Added Jan 2022 • 52 Fuel-ups

  Property of sheribeere

• 25.9 Avg MPG

• LGT

  2006 Subaru Legacy GT 2.5L H4 GAS Manual 5 Speed Wagon
  Added Jun 2024 • 9 Fuel-ups

  Property of Stanner

• 20.3 Avg MPG

• 2006 Subaru Legacy GT spec.B #347

  2006 Subaru Legacy GT spec.B 2.5L H4 GAS Manual 5 Speed
  Added Aug 2019 • 213 Fuel-ups

  Property of Kazsmir

• 16.6 Avg MPG

• Scooby

  2006 Subaru Legacy 2.5i 2.5L H4 GAS Standard 5 Speed
  Added Oct 2017 • 4 Fuel-ups

  Property of heuster

• 37.1 Avg MPG

• My Legacy

  2006 Subaru Legacy GT 2.5L H4 GAS Manual 5 Speed
  Added Apr 2022 • 12 Fuel-ups

  Property of NateP350

• 26.2 Avg MPG

• Scooby Subaru

  2006 Subaru Legacy 2.5i 2.5L H4 GAS Automatic 4 Speed Sedan
  Added Jan 2022 • 47 Fuel-ups

  Property of marriedman

• 23.0 Avg MPG

• Sadie

  2006 Subaru Legacy GAS H4
  Added Nov 2012 • 393 Fuel-ups

  Property of Spooph

• 24.2 Avg MPG

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