Based on data from 54 vehicles, 4,030 fuel-ups and 1,074,028 miles of driving, the 2020 Mazda 3 gets a combined Avg MPG of 30.10 with a 0.22 MPG margin of error.

Any Engine Type 2.0L L4 GAS (3) 2.5L L4 GAS (41) L4 GAS (3) Any Body Style Sedan (8) Hatchback (14) Any Submodel GX (1) I Sport (1) GT (2) Select (2) i Grand Touring (2) GS (3) Preferred (7) Base (8) Premium (22) Other (6)

Below you can see a distribution of the fuel-ups with 125 outliers (3.01%) removed.

Following shows the average MPG of each of the 54 vehicles in the system.

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• Mazda 3

  2020 Mazda 3 G150 Plus L4 GAS
  Added Dec 2020 • 84 Fuel-ups

  Property of boroxman

• 30.2 Avg MPG

• My 3

  2020 Mazda 3 Premium 2.5L L4 GAS Automatic 6 Speed
  Added Aug 2024 • 19 Fuel-ups

  Property of stevenwilliam94

• 34.8 Avg MPG

• 2020 Mazda 3 Premium MT

  2020 Mazda 3 Premium 2.5L L4 GAS Manual 6 Speed Hatchback
  Added Dec 2019 • 506 Fuel-ups

  Property of morph

• 34.3 Avg MPG

• Mazda3 Hatch

  2020 Mazda 3 Premium 2.5L L4 GAS Automatic 6 Speed
  Added Aug 2020 • 246 Fuel-ups

  Property of blueman00

• 34.7 Avg MPG

• 2020 Mazda 3 Premium 6MT HB

  2020 Mazda 3 Premium 2.5L L4 GAS Manual 6 Speed Hatchback
  Added Jul 2020 • 153 Fuel-ups

  Property of mosca

• 37.3 Avg MPG

• 2020 Mazda 3

  2020 Mazda 3 i Grand Touring 2.5L L4 GAS Automatic 6 Speed
  Added Dec 2023 • 68 Fuel-ups

  Property of LuxeLifeFleet

• 35.1 Avg MPG

• Elsa

  2020 Mazda 3 GT 2.5L L4 GAS Automatic 6 Speed
  Added Oct 2022 • 88 Fuel-ups

  Property of joeyc827

• 28.1 Avg MPG

• Khizer's FAMILY

  2020 Mazda 3 GX 2.0L L4 GAS Automatic 6 Speed Sedan
  Added Mar 2021 • 349 Fuel-ups

  Property of khizer519

• 34.0 Avg MPG

• Mazda 3

  2020 Mazda 3 GS 2.5L L4 GAS Automatic 6 Speed
  Added Mar 2023 • 97 Fuel-ups

  Property of adityamatlani

• 31.3 Avg MPG

• Mazda

  2020 Mazda 3 2.5L L4 GAS Automatic 6 Speed
  Added May 2023 • 30 Fuel-ups

  Property of carlosvazs

• 26.5 Avg MPG

• Mazda 3

  2020 Mazda 3 Evolution
  Added Apr 2023 • 193 Fuel-ups

  Property of Garnau

• 39.3 Avg MPG

• My Mazda3

  2020 Mazda 3 Premium 2.5L L4 GAS Manual 6 Speed
  Added Apr 2020 • 240 Fuel-ups

  Property of mobestar15

• 29.8 Avg MPG

• Baer 3

  2020 Mazda 3 2.5L L4 GAS Automatic 6 Speed
  Added Aug 2023 • 32 Fuel-ups

  Property of a_bear

• 26.5 Avg MPG

• 2020 Mazda 3 Hatchback

  2020 Mazda 3 Premium
  Added Mar 2020 • 135 Fuel-ups

  Property of UncleDunkel

• 29.2 Avg MPG

• My 3

  2020 Mazda 3 Premium 2.5L L4 GAS Automatic 6 Speed
  Added Sep 2023 • 27 Fuel-ups

  Property of saltie95

• 29.6 Avg MPG

• Burton

  2020 Mazda 3 Select 2.5L L4 GAS Automatic 6 Speed
  Added Aug 2023 • 27 Fuel-ups

  Property of Owensells

• 27.1 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

• Makoto

  2020 Mazda 3 Premium 2.5L L4 GAS Manual 6 Speed Hatchback
  Added May 2020 • 30 Fuel-ups

  Property of andrewc

• 31.5 Avg MPG

• Mazda

  2020 Mazda 3 Preferred 2.5L L4 GAS Automatic 6 Speed Hatchback
  Added Jun 2023 • 58 Fuel-ups

  Property of mschex05

• 32.0 Avg MPG

• My 3

  2020 Mazda 3 Preferred 2.5L L4 GAS Automatic 6 Speed
  Added Jan 2021 • 41 Fuel-ups

  Property of aroon

• 23.3 Avg MPG

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