Based on data from 246 vehicles, 26,256 fuel-ups and 7,093,755 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 (67) 2.5L L4 GAS (173) GAS (1) H4 GAS (1) L4 GAS (2) Any Body Style Sedan (33) Hatchback (76) Any Submodel SE (1) S (3) s Grand Touring (3) GX (4) I Touring (5) G (8) GS (10) GT (10) Sport (34) Grand Touring (75) Touring (91) Other (2)

Below you can see a distribution of the fuel-ups with 415 outliers (1.56%) removed.

Following shows the average MPG of each of the 246 vehicles in the system.

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• Ed’s Mazda 3

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Automatic 6 Speed
  Added Dec 2018 • 403 Fuel-ups

  Property of iyoulow

• 29.4 Avg MPG

• ‘18 Mazda 3 - 6MT

  2018 Mazda 3 Touring 2.5L L4 GAS Manual 6 Speed
  Added Apr 2021 • 267 Fuel-ups

  Property of jarevalo96

• 30.3 Avg MPG

• Jon

  2018 Mazda 3 Touring 2.5L L4 GAS Automatic 6 Speed Hatchback
  Added Dec 2018 • 405 Fuel-ups

  Property of jonny772

• 29.7 Avg MPG

• My 3

  2018 Mazda 3 Sport 2.0L L4 GAS Automatic 6 Speed
  Added May 2018 • 299 Fuel-ups

  Property of jsmoname

• 29.2 Avg MPG

• Mazda3

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Automatic 6 Speed
  Added Mar 2024 • 14 Fuel-ups

  Property of Ardiberen

• 27.6 Avg MPG

• My 3

  2018 Mazda 3 Touring 2.5L L4 GAS Automatic 6 Speed
  Added Jul 2018 • 401 Fuel-ups

  Property of gidgetgirl

• 26.8 Avg MPG

• Ruby Mazda3

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Automatic 6 Speed
  Added May 2019 • 62 Fuel-ups

  Property of fpayet

• 26.0 Avg MPG

• Ruby

  2018 Mazda 3 Touring 2.5L L4 GAS Automatic 6 Speed Hatchback
  Added Oct 2018 • 109 Fuel-ups

  Property of mhamblen

• 30.9 Avg MPG

• Mazda 3

  2018 Mazda 3 Touring 2.5L L4 GAS Automatic 6 Speed Hatchback
  Added Mar 2024 • 163 Fuel-ups

  Property of moons31

• 28.4 Avg MPG

• mazzie II

  2018 Mazda 3 Sport 2.0L L4 GAS Automatic 6 Speed
  Added Nov 2022 • 115 Fuel-ups

  Property of retardis

• 24.9 Avg MPG

• 3

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Automatic 6 Speed Sedan
  Added Apr 2018 • 364 Fuel-ups

  Property of frine334

• 31.9 Avg MPG

• Small Gray Zoom-Zoom

  2018 Mazda 3 Sport 2.0L L4 GAS Automatic 6 Speed Hatchback
  Added Jan 2024 • 14 Fuel-ups

  Property of uhNSR

• 37.1 Avg MPG

• Bluie

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Manual 6 Speed Sedan
  Added Apr 2022 • 106 Fuel-ups

  Property of TDICup2010

• 34.8 Avg MPG

• Mazda3

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Automatic 6 Speed
  Added Jan 2019 • 304 Fuel-ups

  Property of fh-pear

• 31.2 Avg MPG

• Trooper

  2018 Mazda 3 GT 2.5L L4 GAS Automatic 6 Speed
  Added Apr 2024 • 8 Fuel-ups

  Property of 2Fast2Furious

• 32.4 Avg MPG

• Mazda3

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Automatic 6 Speed Hatchback
  Added Oct 2019 • 374 Fuel-ups

  Property of jmeister

• 32.9 Avg MPG

• Blue Bullet

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Automatic 6 Speed Hatchback
  Added Oct 2019 • 57 Fuel-ups

  Property of Golfman24

• 38.2 Avg MPG

• Mazda3

  2018 Mazda 3 Touring 2.5L L4 GAS Automatic 6 Speed
  Added Nov 2019 • 199 Fuel-ups

  Property of dchace

• 36.2 Avg MPG

• My 3

  2018 Mazda 3 Touring 2.5L L4 GAS Manual 6 Speed
  Added Apr 2024 • 94 Fuel-ups

  Property of Ipownyu

• 29.1 Avg MPG

• Brown bae

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Automatic 6 Speed
  Added Nov 2020 • 244 Fuel-ups

  Property of lc7926

• 28.6 Avg MPG

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