Based on data from 19 vehicles, 1,015 fuel-ups and 257,720 miles of driving, the 2018 Audi S3 gets a combined Avg MPG of 22.45 with a 0.27 MPG margin of error.

Any Engine Type 2.0L L4 GAS (17) Any Body Style Sedan (11) Any Submodel Prestige (4) Base (5) Premium Plus (5) Technik (5)

Below you can see a distribution of the fuel-ups with 17 outliers (1.65%) removed.

Following shows the average MPG of each of the 19 vehicles in the system.

• Audi S3

  2018 Audi S3 Prestige 2.0L L4 GAS Automatic Dual Clutch 7 Speed
  Added Feb 2023 • 19 Fuel-ups

  Property of jburnette19

• 28.2 Avg MPG

• S3

  2018 Audi S3 Premium Plus 2.0L L4 GAS Automatic Dual Clutch 7 Speed
  Added Feb 2021 • 79 Fuel-ups

  Property of harnedke

• 21.1 Avg MPG

• Audi S3

  2018 Audi S3 Technik 2.0L L4 GAS Automatic Dual Clutch 6 Speed Sedan
  Added Mar 2019 • 115 Fuel-ups

  Property of riceballer

• 19.4 Avg MPG

• S3 Sportback Quattro

  2018 Audi S3 2.0L L4 GAS Automatic Dual Clutch 7 Speed
  Added May 2019 • 35 Fuel-ups

  Property of kenneth5

• 18.0 Avg MPG

• 2018 Audi S3

  2018 Audi S3 Premium Plus 2.0L L4 GAS Automatic Dual Clutch 7 Speed Sedan
  Added Jun 2018 • 121 Fuel-ups

  Property of bryan-cars

• 25.1 Avg MPG

• TR Jnr

  2018 Audi S3 2.0L L4 GAS Automatic Dual Clutch 7 Speed
  Added Dec 2018 • 99 Fuel-ups

  Property of hann1971

• 21.2 Avg MPG

• S3

  2018 Audi S3 Technik 2.0L L4 GAS Automatic Dual Clutch 7 Speed Sedan
  Added Dec 2019 • 54 Fuel-ups

  Property of UK-Pedro

• 23.9 Avg MPG

• Audi S3

  2018 Audi S3 Technik 2.0L L4 GAS Automatic Dual Clutch 7 Speed Sedan
  Added Nov 2018 • 73 Fuel-ups

  Property of MakeMeBad1978

• 21.0 Avg MPG

• S3

  2018 Audi S3 Prestige 2.0L L4 GAS Automatic Dual Clutch 7 Speed Sedan
  Added Nov 2022 • 23 Fuel-ups

  Property of Pettyking

• 27.2 Avg MPG

• My S3

  2018 Audi S3 Premium Plus 2.0L L4 GAS Automatic Dual Clutch 7 Speed
  Added Apr 2021 • 100 Fuel-ups

  Property of Viaon

• 26.9 Avg MPG

• 2018 Audi S3

  2018 Audi S3 2.0L L4 GAS Automatic Dual Clutch 7 Speed Sedan
  Added Jul 2018 • 57 Fuel-ups

  Property of richicupra

• 24.5 Avg MPG

• S3

  2018 Audi S3 Technik 2.0L L4 GAS Automatic Dual Clutch 7 Speed
  Added Jun 2020 • 26 Fuel-ups

  Property of bens85

• 24.7 Avg MPG

• My S3

  2018 Audi S3 Prestige
  Added Oct 2017 • 48 Fuel-ups

  Property of Quakelesan

• 20.3 Avg MPG

• Audi S3 Ara Blue

  2018 Audi S3 Technik 2.0L L4 GAS Automatic Dual Clutch 7 Speed Sedan
  Added Nov 2017 • 79 Fuel-ups

  Property of thornx

• 24.6 Avg MPG

• Audi S3 Avant

  2018 Audi S3 Prestige 2.0L L4 GAS Automatic Dual Clutch 6 Speed Sedan
  Added Jun 2018 • 132 Fuel-ups

  Property of tonikg

• 27.4 Avg MPG

• Navarra S3

  2018 Audi S3 Premium Plus 2.0L L4 GAS Automatic Dual Clutch 7 Speed Sedan
  Added Feb 2020 • 3 Fuel-ups

  Property of baugust

• 25.2 Avg MPG

• My S3

  2018 Audi S3 2.0L L4 GAS Automatic Dual Clutch 7 Speed
  Added Mar 2018 • 87 Fuel-ups

  Property of sgtvic

• 23.8 Avg MPG

• 2018 Audi S3

  2018 Audi S3 Premium Plus 2.0L L4 GAS Automatic Dual Clutch 7 Speed Sedan
  Added Jun 2018 • 3 Fuel-ups

  Property of bhirschon

• 25.0 Avg MPG

• Audi S3

  2018 Audi S3 Automatic 8 Speed Sedan
  Added Nov 2017 • 13 Fuel-ups

  Property of davidmad1

• 20.5 Avg MPG