Based on data from 244 vehicles, 26,070 fuel-ups and 7,043,666 miles of driving, the 2018 Mazda 3 gets a combined Avg MPG of 29.93 with a 0.07 MPG margin of error.

Any Engine Type 2.0L L4 GAS (66) 2.5L L4 GAS (172) GAS (1) H4 GAS (1) L4 GAS (2) Any Body Style Sedan (32) Hatchback (77) Any Submodel SE (1) S (3) s Grand Touring (3) GX (4) I Touring (5) G (8) GS (10) GT (10) Sport (33) Grand Touring (75) Touring (90) Other (2)

Below you can see a distribution of the fuel-ups with 413 outliers (1.56%) removed.

Following shows the average MPG of each of the 244 vehicles in the system.

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• Mazda M3

  2018 Mazda 3 I Touring 2.5L L4 GAS Automatic 6 Speed
  Added Oct 2021 • 68 Fuel-ups

  Property of lrk2743

• 31.6 Avg MPG

• My 3

  2018 Mazda 3 Touring 2.0L L4 GAS Automatic 6 Speed
  Added Jun 2019 • 237 Fuel-ups

  Property of DEA802

• 31.7 Avg MPG

• Mazda3

  2018 Mazda 3 Touring 2.5L L4 GAS Manual 6 Speed Hatchback
  Added Feb 2019 • 184 Fuel-ups

  Property of acedeuce802

• 29.7 Avg MPG

• Mazda

  2018 Mazda 3 Sport 2,0L L4 GAS Manual 6 Speed Hatchback
  Added Mar 2021 • 45 Fuel-ups

  Property of Petyb00

• 31.3 Avg MPG

• Chloe

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Automatic 6 Speed
  Added Jul 2021 • 28 Fuel-ups

  Property of snfinn

• 35.4 Avg MPG

• My 3

  2018 Mazda 3 Touring 2.0L L4 GAS Manual 6 Speed
  Added Apr 2021 • 64 Fuel-ups

  Property of BryanPerez

• 26.4 Avg MPG

• My 3

  2018 Mazda 3 Sport 2.0L L4 GAS Automatic 6 Speed
  Added Nov 2018 • 205 Fuel-ups

  Property of ScottII

• 32.8 Avg MPG

• My 3

  2018 Mazda 3 Sport 2.0L L4 GAS Automatic 6 Speed
  Added Nov 2021 • 85 Fuel-ups

  Property of lifeinbeermecca

• 33.4 Avg MPG

• Mazda3

  2018 Mazda 3 Touring 2.5L L4 GAS Hatchback
  Added Jan 2022 • 67 Fuel-ups

  Property of jdenune

• 27.5 Avg MPG

• 2018 Mazda 3

  2018 Mazda 3 s Grand Touring 2.5L L4 GAS Automatic 6 Speed Hatchback
  Added Jul 2020 • 40 Fuel-ups

  Property of zanixmechanix

• 26.6 Avg MPG

• My Mazda3

  2018 Mazda 3 Touring 2.5L L4 GAS Automatic 6 Speed
  Added Jun 2022 • 19 Fuel-ups

  Property of silverluna

• 30.0 Avg MPG

• Mazzie

  2018 Mazda 3 Touring 2.5L L4 GAS Automatic 6 Speed
  Added Mar 2022 • 41 Fuel-ups

  Property of retardis

• 21.2 Avg MPG

• Mazda3

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Manual 6 Speed
  Added Jul 2018 • 434 Fuel-ups

  Property of wghummel

• 30.2 Avg MPG

• My 3

  2018 Mazda 3 Touring 2.0L L4 GAS Automatic 6 Speed
  Added Mar 2018 • 117 Fuel-ups

  Property of macok1

• 30.5 Avg MPG

• My 3

  2018 Mazda 3 Touring 2.5L L4 GAS Manual 6 Speed
  Added Feb 2019 • 110 Fuel-ups

  Property of mazda3-5

• 28.1 Avg MPG

• Zoey

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Standard 6 Speed
  Added Dec 2017 • 146 Fuel-ups

  Property of pshaffer

• 30.3 Avg MPG

• Ghostrider3

  2018 Mazda 3 Sport 2.0L L4 GAS Automatic 6 Speed
  Added Mar 2020 • 20 Fuel-ups

  Property of Ghostrider3

• 25.1 Avg MPG

• 18 Mazda 3 GT

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Manual 6 Speed Sedan
  Added Jun 2019 • 99 Fuel-ups

  Property of KensTDI

• 36.9 Avg MPG

• G's Mazda 3

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Manual 6 Speed Hatchback
  Added Feb 2019 • 83 Fuel-ups

  Property of drw1926

• 32.6 Avg MPG

• Mazda3

  2018 Mazda 3 Touring 2.5L L4 GAS Automatic 6 Speed Hatchback
  Added Jul 2018 • 21 Fuel-ups

  Property of Motoroadies

• 32.8 Avg MPG

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