Based on data from 263 vehicles, 29,423 fuel-ups and 7,954,225 miles of driving, the 2018 Mazda 3 gets a combined Avg MPG of 29.93 with a 0.06 MPG margin of error.

Any Engine Type 2.0L L4 GAS (75) 2.5L L4 GAS (181) GAS (1) H4 GAS (1) L4 GAS (2) Any Body Style Sedan (37) Hatchback (76) Any Submodel SE (1) s Grand Touring (2) S (5) GX (5) I Touring (5) GT (10) G (10) GS (11) Sport (39) Grand Touring (79) Touring (94) Other (2)

Below you can see a distribution of the fuel-ups with 495 outliers (1.65%) removed.

Following shows the average MPG of each of the 263 vehicles in the system.

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• Mazda 3

  2018 Mazda 3 Sport 2.0L L4 GAS Automatic 6 Speed
  Added Jan 2025 • 10 Fuel-ups

  Property of marcvillanueva

• 19.6 Avg MPG

• White Mazda

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Automatic 6 Speed
  Added Feb 2025 • 7 Fuel-ups

  Property of dcoreas98

• 24.8 Avg MPG

• 2018 Mazda3 Hatchback

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Automatic 6 Speed Hatchback
  Added Apr 2019 • 178 Fuel-ups

  Property of thresham

• 28.2 Avg MPG

• My 3

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Automatic 6 Speed
  Added May 2018 • 205 Fuel-ups

  Property of anah0413

• 28.8 Avg MPG

• My New Mazda

  2018 Mazda 3 Touring 2.5L L4 GAS Manual 6 Speed Hatchback
  Added Oct 2017 • 220 Fuel-ups

  Property of 626Mazda

• 32.7 Avg MPG

• 2018 Mazda 3 - Machine Gray

  2018 Mazda 3 Touring 2.5L L4 GAS Manual 6 Speed Sedan
  Added Aug 2022 • 181 Fuel-ups

  Property of zerhusbt

• 35.0 Avg MPG

• Mazda3

  2018 Mazda 3 Maxx L4 GAS
  Added Sep 2024 • 13 Fuel-ups

  Property of BurneyFamily

• 24.6 Avg MPG

• Mazda3

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Manual 6 Speed
  Added Aug 2022 • 72 Fuel-ups

  Property of robrz350

• 31.0 Avg MPG

• Andria

  2018 Mazda 3 Touring 2.5L L4 GAS Automatic 6 Speed
  Added Mar 2021 • 232 Fuel-ups

  Property of elah33

• 28.2 Avg MPG

• Mazda3

  2018 Mazda 3 Touring 2.5L L4 GAS Manual 6 Speed Hatchback
  Added Jan 2019 • 307 Fuel-ups

  Property of jayjaypea

• 31.1 Avg MPG

• Mazda3

  2018 Mazda 3 GT 2.5L L4 GAS Automatic 6 Speed Hatchback
  Added May 2018 • 152 Fuel-ups

  Property of vriou

• 34.2 Avg MPG

• 2018 Mazda3

  2018 Mazda 3 Touring 2.0L L4 GAS Automatic 6 Speed
  Added Sep 2018 • 261 Fuel-ups

  Property of tart05

• 26.3 Avg MPG

• Mazda 3

  2018 Mazda 3 Sport 2.0L L4 GAS Automatic 6 Speed Sedan
  Added Oct 2020 • 296 Fuel-ups

  Property of pjohnson

• 31.8 Avg MPG

• Hilda

  2018 Mazda 3 GX 2.0L L4 GAS Automatic 6 Speed
  Added Feb 2025 • 5 Fuel-ups

  Property of logit-113

• 28.6 Avg MPG

• My 3

  2018 Mazda 3 Sport 2.0L L4 GAS Automatic 6 Speed
  Added May 2018 • 352 Fuel-ups

  Property of jsmoname

• 29.0 Avg MPG

• Mazda 3

  2018 Mazda 3 Touring 2.0L L4 GAS Automatic 6 Speed
  Added Aug 2022 • 109 Fuel-ups

  Property of pizote155

• 28.0 Avg MPG

• Cherry Brah

  2018 Mazda 3 GT 2.5L L4 GAS Automatic 6 Speed
  Added Apr 2024 • 42 Fuel-ups

  Property of 2Fast2Furious

• 31.7 Avg MPG

• My 3

  2018 Mazda 3 Touring 2.5L L4 GAS Automatic 6 Speed
  Added Jan 2020 • 63 Fuel-ups

  Property of daagui1

• 33.6 Avg MPG

• Brown bae

  2018 Mazda 3 Grand Touring 2.5L L4 GAS Automatic 6 Speed
  Added Nov 2020 • 298 Fuel-ups

  Property of lc7926

• 28.6 Avg MPG

• 2018 Mazda 3

  2018 Mazda 3 Touring 2.5L L4 GAS Automatic 6 Speed
  Added Aug 2018 • 155 Fuel-ups

  Property of mses0804

• 26.7 Avg MPG

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