Based on data from 253 vehicles, 27,898 fuel-ups and 7,557,854 miles of driving, the 2018 Mazda 3 gets a combined Avg MPG of 29.97 with a 0.06 MPG margin of error.

Any Engine Type 2.0L L4 GAS (72) 2.5L L4 GAS (175) GAS (1) H4 GAS (1) L4 GAS (2) Any Body Style Sedan (34) Hatchback (74) Any Submodel SE (1) s Grand Touring (2) S (4) GX (4) I Touring (5) G (9) GT (10) GS (11) Sport (37) Grand Touring (76) Touring (92) Other (2)

Below you can see a distribution of the fuel-ups with 461 outliers (1.63%) removed.

Following shows the average MPG of each of the 253 vehicles in the system.

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• Blue Bullet

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Automatic 6 Speed Hatchback
  Added Oct 2019 • 63 Fuel-ups

  Property of Golfman24

• 38.2 Avg MPG

• Mazda3

  2018 Mazda 3 Touring 2.5L L4 GAS Manual 6 Speed
  Added Feb 2021 • 208 Fuel-ups

  Property of benlbalaban

• 30.2 Avg MPG

• Mazda 3

  2018 Mazda 3 Touring 2.5L L4 GAS Automatic 6 Speed Hatchback
  Added Mar 2024 • 182 Fuel-ups

  Property of moons31

• 28.3 Avg MPG

• My 3

  2018 Mazda 3 Touring 2.5L L4 GAS Automatic 6 Speed
  Added Jul 2018 • 442 Fuel-ups

  Property of gidgetgirl

• 26.8 Avg MPG

• Red Comet

  2018 Mazda 3 Touring 2.5L L4 GAS Automatic 6 Speed Hatchback
  Added Dec 2018 • 249 Fuel-ups

  Property of milekyun

• 26.0 Avg MPG

• Mazda 3

  2018 Mazda 3 Sport 2.0L L4 GAS Automatic 6 Speed Sedan
  Added Oct 2020 • 277 Fuel-ups

  Property of pjohnson

• 31.8 Avg MPG

• 2018 Mazda 3

  2018 Mazda 3 GS 2.0L L4 GAS Automatic 6 Speed
  Added May 2021 • 170 Fuel-ups

  Property of redheron1

• 40.9 Avg MPG

• My New Mazda

  2018 Mazda 3 Touring 2.5L L4 GAS Manual 6 Speed Hatchback
  Added Oct 2017 • 209 Fuel-ups

  Property of 626Mazda

• 32.8 Avg MPG

• 2018 Mazda3

  2018 Mazda 3 Touring 2.0L L4 GAS Automatic 6 Speed
  Added Sep 2018 • 253 Fuel-ups

  Property of tart05

• 26.3 Avg MPG

• Mazda3

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Standard 6 Speed
  Added Dec 2017 • 277 Fuel-ups

  Property of wbrehob

• 31.3 Avg MPG

• Mazda 3

  2018 Mazda 3 Sport 2.0L L4 GAS Automatic 6 Speed Sedan
  Added Aug 2019 • 234 Fuel-ups

  Property of azraul84

• 28.5 Avg MPG

• Jon

  2018 Mazda 3 Touring 2.5L L4 GAS Automatic 6 Speed Hatchback
  Added Dec 2018 • 435 Fuel-ups

  Property of jonny772

• 29.6 Avg MPG

• Mazda3

  2018 Mazda 3 Touring 2.5L L4 GAS Manual 6 Speed Hatchback
  Added Jan 2019 • 287 Fuel-ups

  Property of jayjaypea

• 31.2 Avg MPG

• mazzie II

  2018 Mazda 3 Sport 2.0L L4 GAS Automatic 6 Speed
  Added Nov 2022 • 160 Fuel-ups

  Property of retardis

• 21.3 Avg MPG

• My 3

  2018 Mazda 3 Sport
  Added Mar 2019 • 322 Fuel-ups

  Property of fordcountry250

• 39.7 Avg MPG

• Mazda

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

  Property of elenio

• 28.6 Avg MPG

• Ruby Mazda3

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Automatic 6 Speed
  Added May 2019 • 73 Fuel-ups

  Property of fpayet

• 26.0 Avg MPG

• Andria

  2018 Mazda 3 Touring 2.5L L4 GAS Automatic 6 Speed
  Added Mar 2021 • 220 Fuel-ups

  Property of elah33

• 28.2 Avg MPG

• Mazda 3

  2018 Mazda 3 Touring 2.5L L4 GAS Automatic 6 Speed
  Added Jan 2021 • 327 Fuel-ups

  Property of ThePres

• 31.1 Avg MPG

• Mazda 3

  2018 Mazda 3 GS 2.0L L4 GAS Automatic 6 Speed Sedan
  Added Aug 2019 • 249 Fuel-ups

  Property of snowdud

• 33.7 Avg MPG

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