Based on data from 163 vehicles, 6,962 fuel-ups and 1,452,298 miles of driving, the 2003 Ford Mustang gets a combined Avg MPG of 18.13 with a 0.11 MPG margin of error.

Any Engine Type 3.8L V6 GAS (37) 4.6L V8 GAS (85) V6 GAS (13) V8 GAS (19) Any Body Style Coupe (20) Convertible (11) Any Submodel SVT Cobra 10th Anniversary (1) SVT Cobra (21) Mach 1 (24) Base (37) GT (39) Other (41)

Below you can see a distribution of the fuel-ups with 216 outliers (3.01%) removed.

Following shows the average MPG of each of the 163 vehicles in the system.

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• Old yeller

  2003 Ford Mustang 3.8L V6 GAS Automatic 4 Speed Convertible
  Added Feb 2017 • 9 Fuel-ups

  Property of chburns2

• 19.0 Avg MPG

• My Mach 1

  2003 Ford Mustang Mach 1 4.6L V8 GAS Standard 5 Speed
  Added Oct 2017 • 4 Fuel-ups

  Property of tony15k

• 15.9 Avg MPG

• My Mustang

  2003 Ford Mustang GT 4.6L V8 GAS Standard 5 Speed
  Added May 2017 • 12 Fuel-ups

  Property of miked123

• 13.7 Avg MPG

• 2003 Ford Mustang Mach 1

  2003 Ford Mustang Mach 1 4.6L V8 GAS Automatic 4 Speed
  Added Mar 2016 • 26 Fuel-ups

  Property of codeepotts

• 16.3 Avg MPG

• Blue

  2003 Ford Mustang 3.8L V6 GAS Automatic 4 Speed Convertible
  Added Feb 2018 • 60 Fuel-ups

  Property of eddielopez15

• 21.8 Avg MPG

• Mustang

  2003 Ford Mustang 3.8L V6 GAS Automatic 4 Speed
  Added Sep 2016 • 63 Fuel-ups

  Property of marsar4171

• 18.5 Avg MPG

• Mach 1

  2003 Ford Mustang Mach 1 4.6L V8 GAS Standard 5 Speed Coupe
  Added Nov 2014 • 78 Fuel-ups

  Property of 03mach1

• 14.8 Avg MPG

• Cobra

  2003 Ford Mustang SVT Cobra 4.6L V8 GAS Standard 6 Speed Convertible
  Added Oct 2017 • 431 Fuel-ups

  Property of dwtalso

• 14.1 Avg MPG

• My Mustang

  2003 Ford Mustang 3.8L V6 GAS Automatic 4 Coupe (2 Door)
  Added Jul 2015 • 28 Fuel-ups

  Property of Klipo89

• 17.9 Avg MPG

• Motorcycle

  2003 Ford Mustang 3.8L V6 GAS Automatic 4 Speed
  Added Jan 2018 • 76 Fuel-ups

  Property of ranmasan

• 44.9 Avg MPG

• Old Mustang

  2003 Ford Mustang GT 4.6L V8 GAS Standard 5 Speed Coupe
  Added Sep 2016 • 88 Fuel-ups

  Property of giantrat

• 20.1 Avg MPG

• Ford Mustang Mach 1

  2003 Ford Mustang Mach 1 4.6L V8 GAS Coupe
  Added Dec 2017 • 290 Fuel-ups

  Property of richatn

• 23.1 Avg MPG

• Mustang

  2003 Ford Mustang 3.8L V6 GAS Automatic 4 Speed Convertible
  Added May 2012 • 12 Fuel-ups

  Property of hcorey

• 21.5 Avg MPG

• Mustang GT

  2003 Ford Mustang GT 4.6L V8 GAS Standard 5 Speed
  Added Sep 2016 • 159 Fuel-ups

  Property of gsp78

• 17.7 Avg MPG

• My Mustang

  2003 Ford Mustang SVT Cobra 4.6L V8 GAS Standard 6 Speed
  Added Jun 2016 • 5 Fuel-ups

  Property of Marc_6R

• 15.5 Avg MPG

• '03 Mustang GT

  2003 Ford Mustang GT 4.6L V8 GAS Standard 5 Speed
  Added Sep 2016 • 4 Fuel-ups

  Property of Race1Mopar

• 18.3 Avg MPG

• 03 Mustang

  2003 Ford Mustang 3.8L V6 GAS Automatic 4 Speed
  Added Nov 2016 • 10 Fuel-ups

  Property of carlyle79

• 21.1 Avg MPG

• Cobra

  2003 Ford Mustang SVT Cobra 4.6L V8 GAS Standard 6 Speed
  Added Jun 2016 • 5 Fuel-ups

  Property of Roel

• 10.0 Avg MPG

• My Mustang

  2003 Ford Mustang 3.8L V6 GAS Standard 5 Speed
  Added Dec 2015 • 23 Fuel-ups

  Property of jehbone

• 19.5 Avg MPG

• Old Stang

  2003 Ford Mustang GT 4.6L V8 GAS Automatic 4 Speed
  Added Mar 2017 • 79 Fuel-ups

  Property of zBruha

• 16.2 Avg MPG

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