Based on data from 90 vehicles, 4,351 fuel-ups and 1,316,126 miles of driving, the 2021 BMW X3 gets a combined Avg MPG of 23.69 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 (33) L4 DIESEL (1) L6 DIESEL (1) Any Body Style Sport Utility (24) Any Submodel xDrive30i Protection (1) sDrive20i (2) M (3) M Competition (10) xDrive30e (12) sDrive30i (13) xDrive30i (22) M40i (24) Other (3)

Below you can see a distribution of the fuel-ups with 298 outliers (6.41%) removed.

Following shows the average MPG of each of the 90 vehicles in the system.

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• My X3

  2021 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Aug 2023 • 15 Fuel-ups

  Property of SeaLand

• 22.7 Avg MPG

• X3 M Comp

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Jun 2023 • 80 Fuel-ups

  Property of RS2017

• 19.7 Avg MPG

• My X3

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Jan 2024 • 33 Fuel-ups

  Property of timmiii

• 17.9 Avg MPG

• X3M

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Jan 2024 • 73 Fuel-ups

  Property of alibusoul

• 17.5 Avg MPG

• My X3M Comp

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Apr 2024 • 22 Fuel-ups

  Property of foxtrot121

• 18.9 Avg MPG

• Dirty Diana!

  2021 BMW X3 sDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Apr 2024 • 13 Fuel-ups

  Property of beardgod

• 19.7 Avg MPG

• My X3

  2021 BMW X3 sDrive30i
  Added Sep 2020 • 325 Fuel-ups

  Property of jav02c

• 26.3 Avg MPG

• Beemer

  2021 BMW X3 xDrive30e 2.0L L4 ELECTRIC/GAS Automatic 8 Speed Sport Utility
  Added Jan 2022 • 53 Fuel-ups

  Property of emp1106gmailcom

• 37.4 Avg MPG

• X3 G01

  2021 BMW X3 sDrive30i 2.0L L4 GAS Automatic 8 Speed Sport Utility
  Added Mar 2024 • 6 Fuel-ups

  Property of djcappa

• 123.7 Avg MPG

• My X3

  2021 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Mar 2024 • 43 Fuel-ups

  Property of artbkward

• 29.1 Avg MPG

• X3-FL

  2021 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed Sport Utility
  Added Dec 2023 • 13 Fuel-ups

  Property of jsliddle

• 23.2 Avg MPG

• Emma

  2021 BMW X3 sDrive30i 2.0L L4 GAS Automatic 8 Speed Sport Utility
  Added Aug 2023 • 40 Fuel-ups

  Property of aplarue

• 22.9 Avg MPG

• Helmut Schmetterling

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed Sport Utility
  Added Mar 2021 • 248 Fuel-ups

  Property of mxro

• 24.1 Avg MPG

• My X3

  2021 BMW X3 xDrive30e 2.0L L4 ELECTRIC/GAS Automatic 8 Speed
  Added Feb 2021 • 97 Fuel-ups

  Property of evolude

• 30.9 Avg MPG

• X3 (G01)

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Aug 2024 • 18 Fuel-ups

  Property of prim1013

• 24.3 Avg MPG

• My X3

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Apr 2024 • 36 Fuel-ups

  Property of stephnandy

• 24.8 Avg MPG

• X3

  2021 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Mar 2024 • 42 Fuel-ups

  Property of HBrooks

• 27.5 Avg MPG

• 2021 X3M

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Jun 2022 • 130 Fuel-ups

  Property of jerseyjers

• 15.9 Avg MPG

• My X3

  2021 BMW X3 xDrive30e 2.0L L4 PLUG-IN HYBRID EV-GAS (PHEV) Automatic 8 Speed
  Added Mar 2024 • 16 Fuel-ups

  Property of jhoytde

• 52.8 Avg MPG

• My X3

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Jul 2024 • 24 Fuel-ups

  Property of rainman_X3MC

• 17.6 Avg MPG

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