Based on data from 35 vehicles, 1,713 fuel-ups and 493,500 miles of driving, the 2003 Toyota Sienna gets a combined Avg MPG of 18.91 with a 0.14 MPG margin of error.

Any Engine Type 3.0L V6 GAS (28) V6 GAS (6) Any Body Style Mini Passenger Van (11) Any Submodel CE (7) LE (10) XLE (12) Other (6)

Below you can see a distribution of the fuel-ups with 195 outliers (10.22%) removed.

Following shows the average MPG of each of the 35 vehicles in the system.

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• Toyota Van

  2003 Toyota Sienna LE 3.0L V6 GAS Automatic 4 Speed Mini Passenger Van
  Added Jun 2021 • 14 Fuel-ups

  Property of retrouble

• 29.5 Avg MPG

• B's Old Blue Toy

  2003 Toyota Sienna CE 3.0L V6 GAS Automatic 4 Speed Mini Passenger Van
  Added Jun 2019 • 58 Fuel-ups

  Property of mattschultz4

• 19.1 Avg MPG

• Toyota Sienna

  2003 Toyota Sienna LE 3.0L V6 GAS Automatic 4 Speed
  Added Mar 2017 • 175 Fuel-ups

  Property of blendfixer

• 24.4 Avg MPG

• Sienna

  2003 Toyota Sienna XLE 3.0L V6 GAS Automatic 4 Speed
  Added Nov 2016 • 17 Fuel-ups

  Property of knelson100

• 17.8 Avg MPG

• AIPD Sienna

  2003 Toyota Sienna XLE 3.0L V6 GAS Automatic 4 Speed Mini Passenger Van
  Added Dec 2019 • 29 Fuel-ups

  Property of AIPDC

• 16.4 Avg MPG

• Mom's Van

  2003 Toyota Sienna LE 3.0L V6 GAS Automatic 4 Speed Mini Passenger Van
  Added Jun 2019 • 23 Fuel-ups

  Property of gryneb

• 32.6 Avg MPG

• Sienna

  2003 Toyota Sienna XLE 3.0L V6 GAS Automatic 4 Speed
  Added Aug 2016 • 27 Fuel-ups

  Property of cjoly22

• 23.8 Avg MPG

• WW Invisiplane

  2003 Toyota Sienna XLE 3.0L V6 GAS Automatic 4 Speed
  Added Dec 2019 • 4 Fuel-ups

  Property of RoMiMa

• 17.1 Avg MPG

• Van - Toyota

  2003 Toyota Sienna CE 3.0L V6 GAS Automatic 4 Speed Mini Passenger Van
  Added Jul 2019 • 13 Fuel-ups

  Property of retrouble

• 46.4 Avg MPG

• Van

  2003 Toyota Sienna LE 3.0L V6 GAS Automatic 4 Speed Mini Passenger Van
  Added Oct 2018 • 240 Fuel-ups

  Property of caddy8

• 17.2 Avg MPG

• z old Dan's Van

  2003 Toyota Sienna LE 3.0L V6 GAS Automatic 4 Speed
  Added Mar 2017 • 158 Fuel-ups

  Property of dancornett

• 21.3 Avg MPG

• Van

  2003 Toyota Sienna XLE 3.0L V6 GAS Automatic 4 Speed Mini Passenger Van
  Added Nov 2018 • 372 Fuel-ups

  Property of fuellyLoJo

• 21.2 Avg MPG

• Sienna 2003

  2003 Toyota Sienna CE 3.0L V6 GAS Automatic 4 Speed
  Added Sep 2017 • 39 Fuel-ups

  Property of PatrolHead

• 22.2 Avg MPG

• My Sienna

  2003 Toyota Sienna XLE 3.0L V6 GAS Automatic 4 Speed
  Added Jun 2018 • 3 Fuel-ups

  Property of thefallen3113

• 16.8 Avg MPG

• Sienna

  2003 Toyota Sienna CE 3.0L V6 GAS Automatic 4 Speed
  Added Aug 2017 • 7 Fuel-ups

  Property of RevJimBob

• 20.2 Avg MPG

• Sienna

  2003 Toyota Sienna LE 3.0L V6 GAS Automatic 4 Speed
  Added Sep 2016 • 11 Fuel-ups

  Property of rlillico

• 17.5 Avg MPG

• Katherine's Sienna

  2003 Toyota Sienna XLE 3.0L V6 GAS Automatic 4 Speed
  Added Mar 2017 • 7 Fuel-ups

  Property of kzlewis

• 18.0 Avg MPG

• Sienna

  2003 Toyota Sienna LE 3.0L V6 GAS Automatic 4 Speed Mini Passenger Van
  Added Sep 2017 • 136 Fuel-ups

  Property of cyberkermy

• 19.9 Avg MPG

• My Sienna

  2003 Toyota Sienna XLE 3.0L V6 GAS Automatic 4 Speed
  Added Jun 2017 • 5 Fuel-ups

  Property of leffjay

• 22.1 Avg MPG

• Sienna

  2003 Toyota Sienna CE 3.0L V6 GAS Automatic 4 Speed Mini Passenger Van
  Added Aug 2008 • 502 Fuel-ups

  Property of philcaruso

• 20.8 Avg MPG

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