Based on data from 17 vehicles, 1,759 fuel-ups and 848,221 miles of driving, the 2012 Hyundai i40 gets a combined Avg MPG of 31.66 with a 0.29 MPG margin of error.

Any Engine Type GAS (2) H4 DIESEL (1) L4 GAS (1) V4 DIESEL (1) Any Body Style Sedan (1) Wagon (8) Any Submodel 2.0 GDI (3) 1.7 CRDI (12) Other (2)

Below you can see a distribution of the fuel-ups with 104 outliers (5.58%) removed.

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

• i40

  2012 Hyundai i40 1.7 CRDI H4 DIESEL Manual 6 Speed Wagon
  Added Mar 2021 • 114 Fuel-ups

  Property of skiba77

• 35.8 Avg MPG

• i40

  2012 Hyundai i40 1.7 CRDI
  Added May 2025 • 327 Fuel-ups

  Property of RoLee

• 37.9 Avg MPG

• i40

  2012 Hyundai i40 1.7 CRDI V4 DIESEL Automatic 6 Speed Wagon
  Added Mar 2018 • 154 Fuel-ups

  Property of HYUNCHULYOON

• 32.7 Avg MPG

• I40

  2012 Hyundai i40 2.0 GDI
  Added Aug 2018 • 91 Fuel-ups

  Property of hgword

• 21.2 Avg MPG

• Black Magic

  2012 Hyundai i40 1.7 CRDI
  Added Feb 2018 • 362 Fuel-ups

  Property of Magpieman1955

• 33.3 Avg MPG

• Hyundai

  2012 Hyundai i40 1.7 CRDI
  Added Apr 2018 • 270 Fuel-ups

  Property of Pionteczek

• 30.8 Avg MPG

• My i40

  2012 Hyundai i40 2.0 GDI Automatic 6 Speed Wagon
  Added Apr 2019 • 47 Fuel-ups

  Property of piwakawaka

• 23.7 Avg MPG

• i40

  2012 Hyundai i40 1.7 CRDI Automatic Sedan
  Added Dec 2018 • 385 Fuel-ups

  Property of jpatch

• 36.0 Avg MPG

• i40

  2012 Hyundai i40 1.7 CRDI Wagon
  Added Oct 2017 • 212 Fuel-ups

  Property of digitize

• 28.0 Avg MPG

• Hyundai I40

  2012 Hyundai i40 1.7 CRDI Standard 6 Speed
  Added Oct 2017 • 80 Fuel-ups

  Property of Jankare

• 38.5 Avg MPG

• I40

  2012 Hyundai i40 2.0 GDI L4 GAS Automatic 6 Speed Wagon
  Added Dec 2018 • 9 Fuel-ups

  Property of chanie

• 21.3 Avg MPG

• My i40

  2012 Hyundai i40 1.7 CRDI
  Added Jan 2018 • 15 Fuel-ups

  Property of EsOsO

• 35.9 Avg MPG

• i40

  2012 Hyundai i40 1.7 CRDI Standard 6 Speed Wagon
  Added Sep 2017 • 93 Fuel-ups

  Property of slancozv

• 34.1 Avg MPG

• i40

  2012 Hyundai i40 1.7 CRDI Standard 6 Speed Wagon
  Added Jul 2019 • 93 Fuel-ups

  Property of slancozv

• 34.1 Avg MPG

• Hyundai i40 1.7 CRDI

  2012 Hyundai i40 1.7 CRDI Standard 6 Speed Wagon
  Added Mar 2015 • 19 Fuel-ups

  Property of MED

• 34.0 Avg MPG

• new huihai

  2012 Hyundai i40 GAS
  Added Feb 2012 • 57 Fuel-ups

  Property of ncatbs

• 28.7 Avg MPG

• Hyundai i40 Tourer

  2012 Hyundai i40 GAS
  Added May 2014 • 27 Fuel-ups

  Property of bumpkin

• 25.5 Avg MPG