Based on data from 80 vehicles, 5,517 fuel-ups and 1,393,088 miles of driving, the 2021 Mazda 3 gets a combined Avg MPG of 28.60 with a 0.15 MPG margin of error.

Any Engine Type GAS (2) H4 DIESEL (1) H4 GAS (1) L4 ELECTRIC/GAS (2) L4 GAS (13) V4 GAS (1) V6 GAS (1) Any Body Style Sedan (5) Hatchback (20) Fastback (1) Any Submodel Skyactiv-X (2) Base (32) Turbo AWD Hatchback (33) Other (13)

Below you can see a distribution of the fuel-ups with 73 outliers (1.31%) removed.

Following shows the average MPG of each of the 80 vehicles in the system.

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• Mazda3 2.5 Turbo

  2021 Mazda 3 Turbo AWD Hatchback
  Added Dec 2020 • 251 Fuel-ups

  Property of polird

• 30.1 Avg MPG

• Taz

  2021 Mazda 3 Turbo AWD Hatchback L4 GAS Automatic 6 Speed Hatchback
  Added Nov 2022 • 127 Fuel-ups

  Property of Jlaubers

• 25.1 Avg MPG

• Sharky

  2021 Mazda 3 Turbo AWD Hatchback
  Added Mar 2023 • 91 Fuel-ups

  Property of holdtheairin

• 29.1 Avg MPG

• My 3 new

  2021 Mazda 3
  Added Aug 2021 • 201 Fuel-ups

  Property of richc804

• 25.9 Avg MPG

• Sando

  2021 Mazda 3 Turbo AWD Hatchback
  Added May 2021 • 138 Fuel-ups

  Property of pookieikoop

• 25.0 Avg MPG

• Mazda

  2021 Mazda 3 Skyactiv-X L4 GAS Automatic 6 Speed Fastback
  Added Jan 2024 • 43 Fuel-ups

  Property of nicholas0000

• 31.2 Avg MPG

• Mazda 3

  2021 Mazda 3 Skyactive-G L4 GAS
  Added Sep 2024 • 20 Fuel-ups

  Property of wucinac

• 33.1 Avg MPG

• Mazda 3 Exceed

  2021 Mazda 3 L4 ELECTRIC/GAS Manual 6 Speed Hatchback
  Added Aug 2022 • 100 Fuel-ups

  Property of MarcoRss87

• 33.5 Avg MPG

• 2021 Mazda3

  2021 Mazda 3 Automatic 6 Speed Sedan
  Added Jul 2021 • 200 Fuel-ups

  Property of Rjscls

• 35.4 Avg MPG

• Mazda3

  2021 Mazda 3 L4 GAS Manual 6 Speed Hatchback
  Added Dec 2020 • 115 Fuel-ups

  Property of rgonzales0494

• 34.3 Avg MPG

• Skoot boot

  2021 Mazda 3 Turbo AWD Hatchback
  Added Aug 2021 • 156 Fuel-ups

  Property of Dschlon

• 29.9 Avg MPG

• Mazda 3

  2021 Mazda 3 Turbo AWD Hatchback
  Added Oct 2024 • 18 Fuel-ups

  Property of dantracy93

• 21.0 Avg MPG

• 2021 Mazda3

  2021 Mazda 3 Turbo AWD Hatchback
  Added May 2021 • 47 Fuel-ups

  Property of Bruecken

• 24.7 Avg MPG

• My 3

  2021 Mazda 3
  Added Nov 2023 • 68 Fuel-ups

  Property of mrocc6

• 31.1 Avg MPG

• Mazda3

  2021 Mazda 3 Hatchback GAS Manual 6 Speed
  Added Sep 2024 • 60 Fuel-ups

  Property of pklukeram

• 30.1 Avg MPG

• 2021 Mazda Mazda3

  2021 Mazda 3 Premium
  Added Dec 2020 • 102 Fuel-ups

  Property of mvv91941

• 26.4 Avg MPG

• Polymetal Gray 3 Turbo

  2021 Mazda 3 Turbo AWD Hatchback
  Added May 2021 • 100 Fuel-ups

  Property of nismozoom

• 28.0 Avg MPG

• Jessica 2021 Mazda 3

  2021 Mazda 3
  Added May 2021 • 161 Fuel-ups

  Property of moyerd

• 34.2 Avg MPG

• Mazda 3

  2021 Mazda 3
  Added Jan 2024 • 37 Fuel-ups

  Property of mabates

• 26.2 Avg MPG

• My Mazda3 Turbo

  2021 Mazda 3 AWD Turbo Sedan PP
  Added Dec 2020 • 136 Fuel-ups

  Property of Juker72

• 29.5 Avg MPG

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