Click here to see important news regarding the aCar App

2003 Harley Davidson FLSTFI Fat Boy MPG

Based on data from 7 vehicles, 298 fuel-ups and 42,572 miles of driving, the 2003 Harley Davidson FLSTFI Fat Boy gets a combined Avg MPG of 39.30 with a 0.62 MPG margin of error.

Below you can see a distribution of the fuel-ups with 23 outliers (7.17%) removed.

Following shows the average MPG of each of the 7 vehicles in the system.

2003 Harley Davidson FLSTFI Fat Boys For Sale Nearby

  • FatBoy

    2003 Harley Davidson FLSTFI Fat Boy
    Added Jan 2019 • 27 Fuel-ups

    Property of AZAV8TOR

  • 36.7 Avg MPG
  • Josie’s Beautiful Fat Boy

    2003 Harley Davidson FLSTFI Fat Boy
    Added Jan 2023 • 11 Fuel-ups

    Property of JosieJosJeep

  • 35.4 Avg MPG
  • 2003 Fatboy

    2003 Harley Davidson FLSTFI Fat Boy
    Added Sep 2016 • 67 Fuel-ups

    Property of bartman61

  • 43.0 Avg MPG
  • Dragon

    2003 Harley Davidson FLSTFI Fat Boy
    Added Mar 2020 • 14 Fuel-ups

    Property of pdbegor

  • 44.9 Avg MPG
  • My FLSTFI Fat Boy

    2003 Harley Davidson FLSTFI Fat Boy
    Added Jun 2018 • 18 Fuel-ups

    Property of andronitis

  • 37.7 Avg MPG
  • My FLSTFI Fat Boy

    2003 Harley Davidson FLSTFI Fat Boy
    Added Jun 2018 • 13 Fuel-ups

    Property of hawaiiandad

  • 34.7 Avg MPG
  • Fatboy

    2003 Harley Davidson FLSTFI Fat Boy
    Added Aug 2016 • 199 Fuel-ups

    Property of DFDMedic

  • 41.5 Avg MPG

Recent Activity

from other Harley Davidson FLSTFI Fat Boy vehicles (View All)

Tips

Engine Load, not RPM's save gas

Despite claims that RPM's are directly tied to fuel economy,... ...

by outlaw240

Read more tips