Based on data from 93 vehicles, 7,031 fuel-ups and 2,178,627 miles of driving, the 2018 BMW X3 gets a combined Avg MPG of 23.11 with a 0.13 MPG margin of error.

Any Engine Type 2.0L L4 GAS (44) 3.0L L6 GAS (37) H4 DIESEL (1) L4 DIESEL (4) L6 DIESEL (2) Any Body Style Wagon (2) Sport Utility (33) Any Submodel sDrive20i Executive (2) Base (5) xDrive30i X Line (15) xDrive30i (28) M40i (37) Other (6)

Below you can see a distribution of the fuel-ups with 388 outliers (5.23%) removed.

Following shows the average MPG of each of the 93 vehicles in the system.

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• (B58 Buggy)

  2018 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Oct 2022 • 76 Fuel-ups

  Property of tnE30fan

• 24.0 Avg MPG

• BMW X3 M40i

  2018 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Jan 2019 • 282 Fuel-ups

  Property of yancr

• 19.6 Avg MPG

• BMW X3

  2018 BMW X3 sDrive20i Executive 2.0L L4 GAS Automatic 8 Speed
  Added Jan 2019 • 134 Fuel-ups

  Property of ricdegan

• 36.4 Avg MPG

• BMW X3 M40i

  2018 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed Sport Utility
  Added Mar 2018 • 94 Fuel-ups

  Property of Razzz

• 17.6 Avg MPG

• BMW X3 M40i

  2018 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed Sport Utility
  Added May 2021 • 104 Fuel-ups

  Property of daneaaron

• 20.1 Avg MPG

• My X3

  2018 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Apr 2020 • 162 Fuel-ups

  Property of jkhunter_06

• 21.3 Avg MPG

• X3 2018

  2018 BMW X3 Automatic 8 Speed Sport Utility
  Added Jul 2021 • 63 Fuel-ups

  Property of primey007

• 34.0 Avg MPG

• BELLA

  2018 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed Sport Utility
  Added Aug 2022 • 19 Fuel-ups

  Property of kriscruz

• 23.6 Avg MPG

• BMW

  2018 BMW X3
  Added Jun 2018 • 130 Fuel-ups

  Property of Waynobierman

• 24.5 Avg MPG

• BMW X3 xDrive20d G01

  2018 BMW X3 L4 DIESEL Automatic 8 Speed Sport Utility
  Added Aug 2020 • 63 Fuel-ups

  Property of allen5924

• 29.5 Avg MPG

• Ariel

  2018 BMW X3 xDrive30i X Line 2.0L L4 GAS Automatic 8 Speed
  Added Jun 2021 • 52 Fuel-ups

  Property of boudicea

• 22.0 Avg MPG

• My X3

  2018 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Feb 2018 • 106 Fuel-ups

  Property of KTMF

• 18.5 Avg MPG

• M40i

  2018 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed Sport Utility
  Added Jul 2021 • 126 Fuel-ups

  Property of Dandle

• 17.4 Avg MPG

• X3 M40i

  2018 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed Sport Utility
  Added Jun 2018 • 172 Fuel-ups

  Property of mjmbtv

• 25.1 Avg MPG

• M’s X3 30i

  2018 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Apr 2018 • 195 Fuel-ups

  Property of indyrich

• 23.5 Avg MPG

• My X3

  2018 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Apr 2022 • 23 Fuel-ups

  Property of tonich

• 28.2 Avg MPG

• My X3

  2018 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Nov 2020 • 60 Fuel-ups

  Property of cfriedman2004

• 17.8 Avg MPG

• Pineapple

  2018 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Dec 2018 • 75 Fuel-ups

  Property of bobstercorp

• 26.5 Avg MPG

• My X3

  2018 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Dec 2017 • 84 Fuel-ups

  Property of rhino7

• 22.9 Avg MPG

• BMW

  2018 BMW X3 L4 DIESEL Automatic Wagon
  Added Sep 2021 • 10 Fuel-ups

  Property of vyacheslav

• 34.5 Avg MPG

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