Based on data from 79 vehicles, 7,466 fuel-ups and 2,443,430 miles of driving, the 2018 Mazda 6 gets a combined Avg MPG of 28.95 with a 0.11 MPG margin of error.

Any Engine Type 2.5L L4 GAS (63) L4 DIESEL (1) L4 GAS (5) V4 GAS (1) Any Body Style Sedan (35) Wagon (5) Any Submodel I Sport (1) Grand Touring Reserve (1) Atenza Wagon (1) GS-L (2) Base (4) GT (4) V (4) Grand Touring (9) Sport (10) Touring (13) Signature (14) Grand Touring Reserve (15) Other (1)

Below you can see a distribution of the fuel-ups with 127 outliers (1.67%) removed.

Following shows the average MPG of each of the 79 vehicles in the system.

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• Mazda 6

  2018 Mazda 6 Signature 2.5L L4 GAS Automatic 6 Speed Sedan
  Added Mar 2021 • 156 Fuel-ups

  Property of cpalenshus

• 29.8 Avg MPG

• 2018 Mazda 6

  2018 Mazda 6 Touring 2.5L L4 GAS Automatic 6 Speed
  Added Aug 2018 • 103 Fuel-ups

  Property of mryk

• 31.3 Avg MPG

• Sixspeed

  2018 Mazda 6 Grand Touring 2.5L L4 GAS Automatic 6 Speed
  Added Sep 2019 • 286 Fuel-ups

  Property of HooperX

• 28.2 Avg MPG

• My 6

  2018 Mazda 6 Touring
  Added Sep 2019 • 220 Fuel-ups

  Property of springtwig

• 31.7 Avg MPG

• Mazda 6

  2018 Mazda 6 Signature 2.5L L4 GAS Automatic 6 Speed Sedan
  Added May 2024 • 260 Fuel-ups

  Property of Demonsguile

• 28.3 Avg MPG

• Mazda6

  2018 Mazda 6 V Automatic 6 Speed Sedan
  Added Jul 2018 • 125 Fuel-ups

  Property of jabamx6

• 27.9 Avg MPG

• My 6

  2018 Mazda 6 Grand Touring Reserve 2.5L L4 GAS Automatic 6 Speed
  Added May 2018 • 288 Fuel-ups

  Property of crawfj

• 26.8 Avg MPG

• My 6

  2018 Mazda 6 Grand Touring Reserve 2.5L L4 GAS Automatic 6 Speed
  Added Dec 2022 • 63 Fuel-ups

  Property of sschneider1

• 28.2 Avg MPG

• Venus

  2018 Mazda 6 Grand Touring Reserve 2.5L L4 GAS Automatic 6 Speed
  Added Sep 2019 • 114 Fuel-ups

  Property of gdwriter

• 28.4 Avg MPG

• MazdaBlue

  2018 Mazda 6 Touring 2.5L L4 GAS Automatic 6 Speed Sedan
  Added Apr 2019 • 186 Fuel-ups

  Property of JPG1

• 30.9 Avg MPG

• Mazzie

  2018 Mazda 6 Sport D L4 DIESEL
  Added Jul 2024 • 16 Fuel-ups

  Property of Purkz

• 38.4 Avg MPG

• Mazda6

  2018 Mazda 6 Grand Touring Reserve 2.5L L4 GAS Automatic 6 Speed
  Added Apr 2024 • 49 Fuel-ups

  Property of DevinQ

• 30.6 Avg MPG

• 2018 Mazda 6 GTR

  2018 Mazda 6 Grand Touring Reserve 2.5L L4 GAS Automatic 6 Speed
  Added Oct 2018 • 526 Fuel-ups

  Property of areseagle

• 30.7 Avg MPG

• Betty

  2018 Mazda 6 Sport 2.5L L4 GAS Manual 6 Speed
  Added Dec 2018 • 325 Fuel-ups

  Property of michre

• 29.1 Avg MPG

• The 6

  2018 Mazda 6 Grand Touring Reserve 2.5L L4 GAS Automatic 6 Speed Sedan
  Added Dec 2018 • 240 Fuel-ups

  Property of ssffl

• 31.0 Avg MPG

• My 6

  2018 Mazda 6 Grand Touring Reserve 2.5L L4 GAS Automatic 6 Speed
  Added Apr 2019 • 272 Fuel-ups

  Property of bastmartin

• 30.7 Avg MPG

• My Mazda6 GT-R

  2018 Mazda 6 Grand Touring Reserve 2.5L L4 GAS Automatic 6 Speed
  Added Apr 2019 • 147 Fuel-ups

  Property of kswan53

• 27.8 Avg MPG

• 2018 Mazda Atenza/6 2.5

  2018 Mazda 6 Sport 2.5L L4 GAS Manual 6 Speed
  Added Nov 2020 • 204 Fuel-ups

  Property of mattburchett

• 30.9 Avg MPG

• Mazda 6

  2018 Mazda 6 Sport 2.5L L4 GAS Automatic 6 Speed
  Added Aug 2021 • 132 Fuel-ups

  Property of JamesBambridge

• 28.8 Avg MPG

• Mazda 6

  2018 Mazda 6 Grand Touring 2.5L L4 GAS Automatic 6 Speed Sedan
  Added Feb 2023 • 26 Fuel-ups

  Property of joey77

• 24.6 Avg MPG

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