Based on data from 92 vehicles, 4,554 fuel-ups and 1,375,782 miles of driving, the 2021 BMW X3 gets a combined Avg MPG of 23.67 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 (6.33%) removed.

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

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• My X3

  2021 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Apr 2021 • 139 Fuel-ups

  Property of littlekingdoms

• 26.5 Avg MPG

• X3 (G01)

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Aug 2024 • 24 Fuel-ups

  Property of prim1013

• 23.5 Avg MPG

• Emma

  2021 BMW X3 sDrive30i 2.0L L4 GAS Automatic 8 Speed Sport Utility
  Added Aug 2023 • 46 Fuel-ups

  Property of aplarue

• 23.3 Avg MPG

• X3M

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Jan 2024 • 82 Fuel-ups

  Property of alibusoul

• 17.4 Avg MPG

• 2021 X3M

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Jun 2022 • 139 Fuel-ups

  Property of jerseyjers

• 15.8 Avg MPG

• X3 M Comp

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Jun 2023 • 86 Fuel-ups

  Property of RS2017

• 19.7 Avg MPG

• My X3

  2021 BMW X3 sDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Sep 2022 • 66 Fuel-ups

  Property of ApexMom

• 25.5 Avg MPG

• BMW

  2021 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed Sport Utility
  Added Jan 2024 • 19 Fuel-ups

  Property of J_Willy

• 28.4 Avg MPG

• X3M

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed Sport Utility
  Added Jan 2025 • 7 Fuel-ups

  Property of jeanharry

• 18.1 Avg MPG

• My X3

  2021 BMW X3 sDrive30i
  Added Sep 2020 • 335 Fuel-ups

  Property of jav02c

• 26.3 Avg MPG

• My X3

  2021 BMW X3 sDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Sep 2024 • 17 Fuel-ups

  Property of CRTheisen

• 23.9 Avg MPG

• X3

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

  Property of HBrooks

• 27.3 Avg MPG

• Apollo

  2021 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed Sport Utility
  Added May 2024 • 24 Fuel-ups

  Property of 007_Altitude

• 22.8 Avg MPG

• My X3

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Apr 2024 • 39 Fuel-ups

  Property of stephnandy

• 24.6 Avg MPG

• My X3

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Jul 2024 • 29 Fuel-ups

  Property of rainman_X3MC

• 17.4 Avg MPG

• My X3

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Jun 2021 • 125 Fuel-ups

  Property of Fuel_Lee

• 18.7 Avg MPG

• Helmut Schmetterling

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed Sport Utility
  Added Mar 2021 • 260 Fuel-ups

  Property of mxro

• 24.0 Avg MPG

• BMW X3 M40i - Alex

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed Sport Utility
  Added Dec 2023 • 29 Fuel-ups

  Property of mcdanielvzw

• 25.0 Avg MPG

• My X3

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Jan 2024 • 37 Fuel-ups

  Property of timmiii

• 17.7 Avg MPG

• My X3

  2021 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Sep 2021 • 90 Fuel-ups

  Property of xinyeee

• 20.8 Avg MPG

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