Based on data from 260 vehicles, 29,138 fuel-ups and 7,877,523 miles of driving, the 2018 Mazda 3 gets a combined Avg MPG of 29.94 with a 0.06 MPG margin of error.

Any Engine Type 2.0L L4 GAS (73) 2.5L L4 GAS (180) GAS (1) H4 GAS (1) L4 GAS (2) Any Body Style Sedan (36) Hatchback (76) Any Submodel SE (1) s Grand Touring (2) S (4) GX (4) I Touring (5) GT (10) G (10) GS (11) Sport (38) Grand Touring (79) Touring (94) Other (2)

Below you can see a distribution of the fuel-ups with 491 outliers (1.66%) removed.

Following shows the average MPG of each of the 260 vehicles in the system.

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• mazda3

  2018 Mazda 3 Touring 2.5L L4 GAS Automatic 6 Speed
  Added Jan 2025 • 5 Fuel-ups

  Property of trumpetstu

• 27.9 Avg MPG

• 2018 Mazda 3

  2018 Mazda 3 Touring 2.5L L4 GAS Manual 6 Speed
  Added Mar 2018 • 219 Fuel-ups

  Property of OyamaVFR

• 26.4 Avg MPG

• Mazda 3 Touring

  2018 Mazda 3 Touring 2.5L L4 GAS Automatic 6 Speed
  Added Aug 2024 • 17 Fuel-ups

  Property of roncal135

• 21.6 Avg MPG

• Ruby Mazda3

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Automatic 6 Speed
  Added May 2019 • 76 Fuel-ups

  Property of fpayet

• 25.8 Avg MPG

• 2018 Mazda3 [Rally Hatch]

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Automatic 6 Speed
  Added Feb 2020 • 74 Fuel-ups

  Property of thresham

• 28.6 Avg MPG

• Mazda3

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

  Property of corman84

• 30.6 Avg MPG

• 2018 Mazda3

  2018 Mazda 3 Touring 2.0L L4 GAS Automatic 6 Speed
  Added Sep 2018 • 259 Fuel-ups

  Property of tart05

• 26.3 Avg MPG

• Mazda 3

  2018 Mazda 3 Touring 2.0L L4 GAS Automatic 6 Speed
  Added Mar 2018 • 169 Fuel-ups

  Property of simonjpmay

• 27.4 Avg MPG

• Mazda 3

  2018 Mazda 3 GS 2.0L L4 GAS Automatic 6 Speed Sedan
  Added Aug 2019 • 253 Fuel-ups

  Property of snowdud

• 33.6 Avg MPG

• My 3

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Manual 6 Speed
  Added Nov 2017 • 233 Fuel-ups

  Property of lmsalman

• 29.9 Avg MPG

• Maz3 LK

  2018 Mazda 3 I Touring 2.5L L4 GAS Automatic 6 Speed
  Added Sep 2023 • 58 Fuel-ups

  Property of jazzman27

• 30.3 Avg MPG

• My Mazda3

  2018 Mazda 3 S 2.5L L4 GAS Manual 6 Speed
  Added Apr 2024 • 19 Fuel-ups

  Property of Izaakc3

• 29.8 Avg MPG

• Mazda3

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Manual 6 Speed
  Added Aug 2022 • 69 Fuel-ups

  Property of robrz350

• 31.0 Avg MPG

• Blue Bullet

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Automatic 6 Speed Hatchback
  Added Oct 2019 • 68 Fuel-ups

  Property of Golfman24

• 37.9 Avg MPG

• 2018 Mazda 3 - Machine Gray

  2018 Mazda 3 Touring 2.5L L4 GAS Manual 6 Speed Sedan
  Added Aug 2022 • 178 Fuel-ups

  Property of zerhusbt

• 35.1 Avg MPG

• MAZDA 3 2018

  2018 Mazda 3 GX H4 GAS Automatic 6 Speed Hatchback
  Added Sep 2018 • 120 Fuel-ups

  Property of kahahansi

• 30.8 Avg MPG

• Red Comet

  2018 Mazda 3 Touring 2.5L L4 GAS Automatic 6 Speed Hatchback
  Added Dec 2018 • 258 Fuel-ups

  Property of milekyun

• 26.0 Avg MPG

• Mazda 3

  2018 Mazda 3 G 2.0L L4 GAS Automatic 6 Speed Sedan
  Added Apr 2018 • 268 Fuel-ups

  Property of adriantee

• 31.2 Avg MPG

• Mazda 3

  2018 Mazda 3 Sport 2,0L L4 GAS Automatic 6 Speed Hatchback
  Added Jul 2019 • 77 Fuel-ups

  Property of neXib

• 34.6 Avg MPG

• Mazda 3

  2018 Mazda 3 G 2.0L L4 GAS Manual 6 Speed Sedan
  Added Mar 2023 • 46 Fuel-ups

  Property of mimos

• 31.1 Avg MPG

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