Based on data from 33 vehicles, 1,691 fuel-ups and 488,357 miles of driving, the 2003 Toyota Sienna gets a combined Avg MPG of 18.92 with a 0.14 MPG margin of error.

Any Engine Type 3.0L V6 GAS (26) V6 GAS (6) Any Body Style Mini Passenger Van (10) Any Submodel CE (7) LE (9) XLE (11) Other (6)

Below you can see a distribution of the fuel-ups with 185 outliers (9.86%) removed.

Following shows the average MPG of each of the 33 vehicles in the system.

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• AIPD Sienna

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

  Property of AIPDC

• 13.6 Avg MPG

• B's Toy

  2003 Toyota Sienna CE 3.0L V6 GAS Automatic 4 Speed Mini Passenger Van
  Added Jun 2019 • 49 Fuel-ups

  Property of mattschultz4

• 19.5 Avg MPG

• Van - Toyota

  2003 Toyota Sienna CE 3.0L V6 GAS Automatic 4 Speed Mini Passenger Van
  Added Jul 2019 • 9 Fuel-ups

  Property of retrouble

• 56.7 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

• 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

• Mom's Van

  2003 Toyota Sienna LE 3.0L V6 GAS Automatic 4 Speed Mini Passenger Van
  Added Jun 2019 • 18 Fuel-ups

  Property of gryneb

• 22.8 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

• 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

• Great White Shark

  2003 Toyota Sienna GAS V6
  Added Apr 2013 • 7 Fuel-ups

  Property of zstand

• 30.2 Avg MPG

• 03 Toyota Sienna

  2003 Toyota Sienna LE 3.0L V6 GAS Automatic 4 Speed
  Added Mar 2017 • 152 Fuel-ups

  Property of Omab

• 17.4 Avg MPG

• Sienna

  2003 Toyota Sienna CE 3.0L V6 GAS Automatic 4 Speed Mini Passenger Van
  Added Dec 2016 • 11 Fuel-ups

  Property of RealDominique

• 7.1 Avg MPG

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