Based on data from 54 vehicles, 5,619 fuel-ups and 1,590,311 miles of driving, the 2018 Mazda CX-9 gets a combined Avg MPG of 21.78 with a 0.10 MPG margin of error.

Any Engine Type 2.5L L4 GAS (47) GAS (2) L4 GAS (2) V4 GAS (2) Any Body Style Sport Utility (29) Any Submodel GS-L (1) Azami LE (1) i Grand Touring (2) 1.5 RS CVT Honda SENSING (3) Signature (6) GT (8) Touring (12) Grand Touring (21)

Below you can see a distribution of the fuel-ups with 132 outliers (2.30%) removed.

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

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• My CX-9

  2018 Mazda CX-9 Grand Touring 2.5L L4 GAS Automatic 6 Speed
  Added Nov 2017 • 476 Fuel-ups

  Property of Butchyboy

• 21.6 Avg MPG

• CX-9

  2018 Mazda CX-9 GT 2.5L L4 GAS Automatic 6 Speed Sport Utility
  Added Mar 2018 • 169 Fuel-ups

  Property of jaycan

• 21.2 Avg MPG

• My CX-9

  2018 Mazda CX-9 Touring 2.5L L4 GAS Automatic 6 Speed
  Added Aug 2024 • 33 Fuel-ups

  Property of Cowens621

• 19.4 Avg MPG

• CX-9

  2018 Mazda CX-9 Touring GAS Automatic
  Added Feb 2018 • 253 Fuel-ups

  Property of davidgiesberg

• 20.6 Avg MPG

• My CX-9 Grand Touring

  2018 Mazda CX-9 Grand Touring 2.5L L4 GAS Automatic 6 Speed
  Added Jul 2021 • 269 Fuel-ups

  Property of VeroBerumen

• 20.2 Avg MPG

• My CX-9

  2018 Mazda CX-9 Touring 2.5L L4 GAS Automatic 6 Speed
  Added Nov 2025 • 74 Fuel-ups

  Property of dnwdnw

• 25.9 Avg MPG

• Mazda CX-9

  2018 Mazda CX-9 Grand Touring V4 GAS Automatic 6 Speed Sport Utility
  Added Feb 2025 • 132 Fuel-ups

  Property of Be4givN

• 23.5 Avg MPG

• My CX-9

  2018 Mazda CX-9 GT 2.5L L4 GAS Automatic 6 Speed
  Added Jul 2018 • 254 Fuel-ups

  Property of JumpingJacques

• 22.8 Avg MPG

• 2018 Mazda CX-9

  2018 Mazda CX-9 Grand Touring 2.5L L4 GAS Automatic 6 Speed Sport Utility
  Added Nov 2024 • 21 Fuel-ups

  Property of SiG10

• 17.5 Avg MPG

• My CX-9

  2018 Mazda CX-9 GS-L 2.5L L4 GAS Automatic 6 Speed
  Added Jun 2018 • 215 Fuel-ups

  Property of nickstephens

• 20.3 Avg MPG

• Normandy

  2018 Mazda CX-9 Grand Touring 2.5L L4 GAS Automatic 6 Speed Sport Utility
  Added Jun 2019 • 49 Fuel-ups

  Property of Aonarach

• 19.3 Avg MPG

• My CX-9

  2018 Mazda CX-9 Grand Touring 2.5L L4 GAS Automatic 6 Speed
  Added Apr 2021 • 149 Fuel-ups

  Property of stevesanda

• 21.9 Avg MPG

• My CX-9 Grand Touring

  2018 Mazda CX-9 i Grand Touring 2.5L L4 GAS Automatic 6 Speed
  Added Nov 2021 • 130 Fuel-ups

  Property of moimendez

• 20.2 Avg MPG

• My CX-9

  2018 Mazda CX-9 Signature 2.5L L4 GAS Automatic 6 Speed Sport Utility
  Added May 2021 • 159 Fuel-ups

  Property of oldsears

• 24.3 Avg MPG

• CX-9

  2018 Mazda CX-9 Grand Touring 2.5L L4 GAS Automatic 6 Speed Sport Utility
  Added Sep 2023 • 223 Fuel-ups

  Property of jhufnagle

• 27.0 Avg MPG

• CX-9

  2018 Mazda CX-9 Grand Touring 2.5L L4 GAS Automatic 6 Speed Sport Utility
  Added Apr 2018 • 157 Fuel-ups

  Property of jhufnagle

• 25.4 Avg MPG

• Mazda CX-9

  2018 Mazda CX-9 Touring 2.5L L4 GAS Automatic 6 Speed Sport Utility
  Added Sep 2019 • 49 Fuel-ups

  Property of thierry_csy

• 24.3 Avg MPG

• MazdaRati

  2018 Mazda CX-9 1.5 RS CVT Honda SENSING 2.5L L4 GAS Automatic 6 Speed Sport Utility
  Added Mar 2022 • 125 Fuel-ups

  Property of panthermike

• 21.7 Avg MPG

• 2018 CX-9

  2018 Mazda CX-9 GT 2.5L L4 GAS Automatic 6 Speed
  Added Aug 2018 • 488 Fuel-ups

  Property of snoopyben

• 22.3 Avg MPG

• 2018 Mazda CX-9

  2018 Mazda CX-9 Touring 2.5L L4 GAS Automatic 6 Speed Sport Utility
  Added May 2025 • 85 Fuel-ups

  Property of publow13

• 21.6 Avg MPG

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