Based on data from 101 vehicles, 8,230 fuel-ups and 2,536,619 miles of driving, the 2018 BMW X3 gets a combined Avg MPG of 23.01 with a 0.11 MPG margin of error.

Any Engine Type 2.0L L4 GAS (45) 3.0L L6 GAS (42) H4 DIESEL (2) L4 DIESEL (4) L6 DIESEL (2) Any Body Style Wagon (2) Sport Utility (36) Any Submodel sDrive20i Executive (2) Base (7) xDrive30i X Line (15) xDrive30i (29) M40i (42) Other (6)

Below you can see a distribution of the fuel-ups with 580 outliers (6.58%) removed.

Following shows the average MPG of each of the 101 vehicles in the system.

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• My X3

  2018 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Nov 2024 • 27 Fuel-ups

  Property of ckappe

• 24.8 Avg MPG

• 2018 BMW X3

  2018 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Jun 2022 • 126 Fuel-ups

  Property of markpwilson

• 25.8 Avg MPG

• My X3

  2018 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Dec 2020 • 208 Fuel-ups

  Property of DESRN

• 24.4 Avg MPG

• My X3

  2018 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Jul 2023 • 59 Fuel-ups

  Property of LilGator

• 20.3 Avg MPG

• X3

  2018 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed Sport Utility
  Added Mar 2018 • 275 Fuel-ups

  Property of bst07

• 22.5 Avg MPG

• G01

  2018 BMW X3 M40i 3,0L L6 GAS Automatic 8 Speed Sport Utility
  Added May 2024 • 33 Fuel-ups

  Property of vytpau

• 20.0 Avg MPG

• My X3

  2018 BMW X3
  Added Jul 2024 • 15 Fuel-ups

  Property of Victor7

• 21.8 Avg MPG

• My X3

  2018 BMW X3 xDrive30i X Line 2.0L L4 GAS Automatic 8 Speed
  Added Aug 2023 • 105 Fuel-ups

  Property of TrevK

• 25.8 Avg MPG

• BMW X3

  2018 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Apr 2025 • 4 Fuel-ups

  Property of erickron

• 21.7 Avg MPG

• BMW X3 Xdrive30i

  2018 BMW X3 xDrive30i X Line 2,0L L4 GAS Automatic 8 Speed
  Added Aug 2021 • 110 Fuel-ups

  Property of FTikka

• 24.6 Avg MPG

• Emmie the M40

  2018 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Mar 2023 • 88 Fuel-ups

  Property of mizznfizz

• 21.0 Avg MPG

• M40blue

  2018 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed Sport Utility
  Added Apr 2018 • 305 Fuel-ups

  Property of M40blue

• 25.6 Avg MPG

• X3 xDrive30i

  2018 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Jan 2018 • 340 Fuel-ups

  Property of RichL

• 22.8 Avg MPG

• BMW X3 M40i

  2018 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed Sport Utility
  Added Mar 2025 • 6 Fuel-ups

  Property of Punerrus

• 24.8 Avg MPG

• My X3

  2018 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Jul 2023 • 164 Fuel-ups

  Property of darora15

• 21.9 Avg MPG

• My X3

  2018 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Jun 2018 • 203 Fuel-ups

  Property of Kacprus

• 19.6 Avg MPG

• X3 M40i

  2018 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed Sport Utility
  Added Jun 2018 • 132 Fuel-ups

  Property of DigiSage

• 22.9 Avg MPG

• My X3

  2018 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Nov 2018 • 149 Fuel-ups

  Property of Beauduf

• 24.9 Avg MPG

• My X3

  2018 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Mar 2019 • 144 Fuel-ups

  Property of SuperMojo

• 24.1 Avg MPG

• My X3

  2018 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Aug 2019 • 218 Fuel-ups

  Property of derkconnor

• 23.5 Avg MPG

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