Based on data from 92 vehicles, 4,603 fuel-ups and 1,388,828 miles of driving, the 2021 BMW X3 gets a combined Avg MPG of 23.66 with a 0.18 MPG margin of error.

Any Engine Type 2.0L L4 ELECTRIC/GAS (8) 2.0L L4 GAS (37) 2.0L L4 PLUG-IN HYBRID EV-GAS (PHEV) (4) 3.0L L6 GAS (34) L4 DIESEL (1) L6 DIESEL (2) Any Body Style Sport Utility (25) Any Submodel xDrive30i Protection (1) sDrive20i (2) M (3) M Competition (11) xDrive30e (12) sDrive30i (13) xDrive30i (22) M40i (24) Other (4)

Below you can see a distribution of the fuel-ups with 308 outliers (6.27%) removed.

Following shows the average MPG of each of the 92 vehicles in the system.

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• X3 M40i

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added May 2021 • 90 Fuel-ups

  Property of SWReefKeeper

• 18.0 Avg MPG

• My X3

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Jul 2024 • 30 Fuel-ups

  Property of rainman_X3MC

• 17.3 Avg MPG

• My X3

  2021 BMW X3 sDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Sep 2024 • 18 Fuel-ups

  Property of CRTheisen

• 23.7 Avg MPG

• X3 M Comp

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Jun 2023 • 88 Fuel-ups

  Property of RS2017

• 19.7 Avg MPG

• My X3

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Apr 2024 • 41 Fuel-ups

  Property of stephnandy

• 24.6 Avg MPG

• Bimmer

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed Sport Utility
  Added Jun 2021 • 72 Fuel-ups

  Property of techfanboy

• 21.2 Avg MPG

• My X3

  2021 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Mar 2024 • 51 Fuel-ups

  Property of artbkward

• 29.1 Avg MPG

• 2021 X3M

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Jun 2022 • 141 Fuel-ups

  Property of jerseyjers

• 15.8 Avg MPG

• My X3

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Jun 2021 • 126 Fuel-ups

  Property of Fuel_Lee

• 18.7 Avg MPG

• The X3

  2021 BMW X3 sDrive30i 2.0L L4 GAS Automatic 8 Speed Sport Utility
  Added Apr 2023 • 34 Fuel-ups

  Property of MrOutcast

• 27.9 Avg MPG

• X3

  2021 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Mar 2024 • 53 Fuel-ups

  Property of HBrooks

• 27.3 Avg MPG

• X3M

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Jan 2024 • 84 Fuel-ups

  Property of alibusoul

• 17.4 Avg MPG

• Emma

  2021 BMW X3 sDrive30i 2.0L L4 GAS Automatic 8 Speed Sport Utility
  Added Aug 2023 • 47 Fuel-ups

  Property of aplarue

• 23.3 Avg MPG

• My X3

  2021 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Sep 2021 • 91 Fuel-ups

  Property of xinyeee

• 20.8 Avg MPG

• BMW X3 xDrive30e 2021

  2021 BMW X3 xDrive30e 2.0L L4 PLUG-IN HYBRID EV-GAS (PHEV) Automatic 8 Speed
  Added May 2021 • 16 Fuel-ups

  Property of yosemite52

• 69.6 Avg MPG

• X3M

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed Sport Utility
  Added Jan 2025 • 9 Fuel-ups

  Property of jeanharry

• 18.5 Avg MPG

• My X3

  2021 BMW X3 sDrive30i
  Added Sep 2020 • 337 Fuel-ups

  Property of jav02c

• 26.3 Avg MPG

• Helmut Schmetterling

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed Sport Utility
  Added Mar 2021 • 263 Fuel-ups

  Property of mxro

• 24.0 Avg MPG

• My X3

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Oct 2024 • 11 Fuel-ups

  Property of g10ac05ta

• 14.1 Avg MPG

• X3 m40i

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added May 2021 • 146 Fuel-ups

  Property of dustind

• 19.7 Avg MPG

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