Based on data from 17 vehicles, 1,280 fuel-ups and 320,029 miles of driving, the 2020 BMW M340i gets a combined Avg MPG of 23.15 with a 0.32 MPG margin of error.

Any Engine Type GAS (1) L6 GAS (6) Any Body Style Sedan (8) Wagon (1) Any Submodel Base (16) Other (1)

Below you can see a distribution of the fuel-ups with 22 outliers (1.69%) removed.

Following shows the average MPG of each of the 17 vehicles in the system.

• Thunderstruck

  2020 BMW M340i Automatic 8 Speed Sedan
  Added Nov 2021 • 144 Fuel-ups

  Property of jeffbarnardtx

• 24.4 Avg MPG

• M340i

  2020 BMW M340i L6 GAS Automatic 8 Speed Sedan
  Added Mar 2023 • 58 Fuel-ups

  Property of BMW-Ben

• 28.3 Avg MPG

• My M340i

  2020 BMW M340i
  Added Apr 2024 • 4 Fuel-ups

  Property of Pandaevo

• 22.2 Avg MPG

• M340i Tourer

  2020 BMW M340i GAS Automatic 8 Speed Wagon
  Added Oct 2020 • 64 Fuel-ups

  Property of Spitfire3757

• 23.7 Avg MPG

• Soflo M340i

  2020 BMW M340i
  Added Jul 2020 • 173 Fuel-ups

  Property of slickazzlatino

• 21.9 Avg MPG

• M340i

  2020 BMW M340i L6 GAS Automatic 8 Speed Sedan
  Added Jan 2020 • 111 Fuel-ups

  Property of electriclarryland

• 23.1 Avg MPG

• M340i

  2020 BMW M340i
  Added Jul 2020 • 77 Fuel-ups

  Property of JamminJosh

• 19.3 Avg MPG

• Hans

  2020 BMW M340i
  Added Jan 2024 • 7 Fuel-ups

  Property of shutupderek

• 25.4 Avg MPG

• My M340i

  2020 BMW M340i Custom Submodel
  Added Sep 2023 • 9 Fuel-ups

  Property of BumbleTRDP

• 27.1 Avg MPG

• Mom's M340ix

  2020 BMW M340i Automatic 8 Speed Sedan
  Added Apr 2020 • 68 Fuel-ups

  Property of innovativeit

• 23.9 Avg MPG

• M340i

  2020 BMW M340i Automatic 8 Speed Sedan
  Added Jun 2020 • 59 Fuel-ups

  Property of dll2k4

• 30.5 Avg MPG

• M340i

  2020 BMW M340i L6 GAS Automatic 8 Speed Sedan
  Added Oct 2020 • 112 Fuel-ups

  Property of FTWNeon

• 27.2 Avg MPG

• Ultra Sexy

  2020 BMW M340i L6 GAS
  Added Jul 2020 • 42 Fuel-ups

  Property of boozehound

• 25.0 Avg MPG

• ‘20 M340i

  2020 BMW M340i
  Added Jul 2020 • 247 Fuel-ups

  Property of bigEDGE02

• 21.5 Avg MPG

• My M340i

  2020 BMW M340i
  Added Jul 2020 • 114 Fuel-ups

  Property of love3x3eyes

• 21.9 Avg MPG

• 20 BMW

  2020 BMW M340i L6 GAS Automatic 8 Speed Sedan
  Added Nov 2021 • 47 Fuel-ups

  Property of zrozie

• 25.0 Avg MPG

• Polina (G20)

  2020 BMW M340i L6 GAS Automatic 8 Speed Sedan
  Added Dec 2019 • 11 Fuel-ups

  Property of zmp

• 25.9 Avg MPG