Based on data from 58 vehicles, 4,683 fuel-ups and 1,248,913 miles of driving, the 2020 Mazda 3 gets a combined Avg MPG of 29.85 with a 0.20 MPG margin of error.

Any Engine Type 2.0L L4 GAS (4) 2.5L L4 GAS (43) L4 GAS (3) V4 GAS (1) Any Body Style Sedan (8) Hatchback (16) Any Submodel I Sport (1) GT (2) GX (2) Select (2) i Grand Touring (2) GS (3) Preferred (7) Base (10) Premium (22) Other (7)

Below you can see a distribution of the fuel-ups with 142 outliers (2.94%) removed.

Following shows the average MPG of each of the 58 vehicles in the system.

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• Mazda 3 BP

  2020 Mazda 3 High Plus V4 GAS
  Added Jan 2025 • 134 Fuel-ups

  Property of nekot

• 19.8 Avg MPG

• Mazda 3

  2020 Mazda 3 GS 2.5L L4 GAS Automatic 6 Speed
  Added Mar 2023 • 118 Fuel-ups

  Property of adityamatlani

• 31.4 Avg MPG

• Mazda3

  2020 Mazda 3 Select 2.5L L4 GAS Automatic 6 Speed Sedan
  Added Feb 2023 • 44 Fuel-ups

  Property of pacman

• 28.0 Avg MPG

• My 3

  2020 Mazda 3 2.5L L4 GAS Automatic 6 Speed
  Added Jan 2025 • 7 Fuel-ups

  Property of urmomfails

• 33.7 Avg MPG

• Mazda

  2020 Mazda 3 2.5L L4 GAS Automatic 6 Speed
  Added May 2023 • 34 Fuel-ups

  Property of carlosvazs

• 26.4 Avg MPG

• 2020 Mazda 3

  2020 Mazda 3 Premium 2.5L L4 GAS Automatic 6 Speed Hatchback
  Added Mar 2024 • 28 Fuel-ups

  Property of jkwong69

• 23.9 Avg MPG

• Khizer's FAMILY

  2020 Mazda 3 GX 2.0L L4 GAS Automatic 6 Speed Sedan
  Added Mar 2021 • 379 Fuel-ups

  Property of khizer519

• 32.8 Avg MPG

• My 3

  2020 Mazda 3 Preferred 2.5L L4 GAS Automatic 6 Speed
  Added May 2024 • 25 Fuel-ups

  Property of allforza2

• 33.6 Avg MPG

• Shelby

  2020 Mazda 3 2.5L L4 GAS Automatic 6 Speed
  Added May 2023 • 48 Fuel-ups

  Property of JHunter927

• 26.3 Avg MPG

• 2020 Mazda3

  2020 Mazda 3 Premium 2.5L L4 GAS Automatic 6 Speed Hatchback
  Added Nov 2022 • 83 Fuel-ups

  Property of sfjacobs

• 27.3 Avg MPG

• Godspeed

  2020 Mazda 3 Preferred 2.5L L4 GAS Automatic 6 Speed Sedan
  Added Feb 2023 • 80 Fuel-ups

  Property of fuelly341

• 33.1 Avg MPG

• Mazdabator Mako

  2020 Mazda 3 Premium 2.5L L4 GAS Automatic 6 Speed Hatchback
  Added Aug 2020 • 179 Fuel-ups

  Property of wagonsrulemyroad

• 27.9 Avg MPG

• My 3

  2020 Mazda 3 2.5L L4 GAS Automatic 6 Speed
  Added Sep 2023 • 5 Fuel-ups

  Property of jkmbull

• 23.8 Avg MPG

• My 3

  2020 Mazda 3 Premium 2.5L L4 GAS Automatic 6 Speed
  Added Feb 2023 • 35 Fuel-ups

  Property of danallred

• 36.7 Avg MPG

• Mazda3

  2020 Mazda 3 Premium 2.5L L4 GAS Automatic 6 Speed
  Added Jun 2020 • 269 Fuel-ups

  Property of newerd

• 31.8 Avg MPG

• Hatch

  2020 Mazda 3 Preferred 2.5L L4 GAS Automatic 6 Speed
  Added Aug 2020 • 171 Fuel-ups

  Property of ajtauro

• 24.5 Avg MPG

• Mazda 3

  2020 Mazda 3 Premium 2.5L L4 GAS Automatic 6 Speed
  Added May 2020 • 58 Fuel-ups

  Property of Goldieluck

• 21.7 Avg MPG

• My 3

  2020 Mazda 3 Preferred 2.5L L4 GAS Automatic 6 Speed
  Added Jun 2021 • 84 Fuel-ups

  Property of araymorris2

• 23.6 Avg MPG

• Her Imperial Majesty

  2020 Mazda 3 2.5L L4 GAS Automatic 6 Speed
  Added Jul 2022 • 24 Fuel-ups

  Property of EpsilonCW

• 30.0 Avg MPG

• 2020 Mazda 3

  2020 Mazda 3 2.5L L4 GAS Automatic 6 Speed Sedan
  Added Jul 2021 • 165 Fuel-ups

  Property of Diremonk

• 27.3 Avg MPG

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