Based on data from 190 vehicles, 22,637 fuel-ups and 6,056,306 miles of driving, the 2008 Toyota Sienna gets a combined Avg MPG of 19.26 with a 0.05 MPG margin of error.

Any Engine Type 3.5L V6 GAS (170) V6 GAS (18) Any Body Style Mini Passenger Van (62) Any Submodel Limited (14) CE (32) XLE (43) LE (83) Other (18)

Below you can see a distribution of the fuel-ups with 1019 outliers (4.31%) removed.

Following shows the average MPG of each of the 190 vehicles in the system.

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• Sienna 8 Seats

  2008 Toyota Sienna LE 3.5L V6 GAS Automatic 5 Speed Mini Passenger Van
  Added Nov 2017 • 345 Fuel-ups

  Property of ahmehla

• 16.5 Avg MPG

• Gracie

  2008 Toyota Sienna LE 3.5L V6 GAS Automatic 5 Speed
  Added Mar 2018 • 11 Fuel-ups

  Property of thehuey

• 31.5 Avg MPG

• BlueVan

  2008 Toyota Sienna LE 3.5L V6 GAS Automatic 5 Speed Mini Passenger Van
  Added May 2017 • 13 Fuel-ups

  Property of Phorluk

• 19.0 Avg MPG

• My Sienna

  2008 Toyota Sienna CE 3.5L V6 GAS Automatic 5 Speed
  Added Feb 2018 • 15 Fuel-ups

  Property of mom4dad

• 22.5 Avg MPG

• My Sienna

  2008 Toyota Sienna LE 3.5L V6 GAS Automatic 5 Speed
  Added Nov 2016 • 55 Fuel-ups

  Property of snyking

• 21.7 Avg MPG

• 08 Sienna

  2008 Toyota Sienna Limited 3.5L V6 GAS Automatic 5 Speed
  Added Aug 2016 • 91 Fuel-ups

  Property of mpalomak

• 28.4 Avg MPG

• Toyota

  2008 Toyota Sienna LE 3.5L V6 GAS Automatic 5 Speed
  Added Mar 2017 • 423 Fuel-ups

  Property of angandnate

• 21.1 Avg MPG

• Toyota Sienna

  2008 Toyota Sienna LE 3.5L V6 GAS Automatic 5 Speed
  Added Nov 2016 • 294 Fuel-ups

  Property of dougscars

• 20.6 Avg MPG

• My Sienna

  2008 Toyota Sienna Limited 3.5L V6 GAS Automatic 5 Speed
  Added Dec 2016 • 5 Fuel-ups

  Property of gilamonster

• 23.0 Avg MPG

• Sienna

  2008 Toyota Sienna LE 3.5L V6 GAS Automatic 5 Speed
  Added Dec 2016 • 78 Fuel-ups

  Property of tsharvey

• 22.2 Avg MPG

• Sienna

  2008 Toyota Sienna LE 3.5L V6 GAS Automatic 5 Speed
  Added Mar 2017 • 4 Fuel-ups

  Property of bujaman

• 17.9 Avg MPG

• Sienna

  2008 Toyota Sienna CE 3.5L V6 GAS Automatic 5 Speed
  Added Sep 2016 • 109 Fuel-ups

  Property of drob1lla

• 22.4 Avg MPG

• Sylvia Rose

  2008 Toyota Sienna LE 3.5L V6 GAS Automatic 5 Speed
  Added Mar 2017 • 87 Fuel-ups

  Property of post

• 19.1 Avg MPG

• Sienna

  2008 Toyota Sienna LE 3.5L V6 GAS Automatic 5 Speed Mini Passenger Van
  Added Dec 2015 • 22 Fuel-ups

  Property of jhayg

• 20.7 Avg MPG

• My Sienna

  2008 Toyota Sienna CE 3.5L V6 GAS Automatic 5 Speed
  Added Aug 2016 • 90 Fuel-ups

  Property of todddetmer

• 19.7 Avg MPG

• Goldilocks

  2008 Toyota Sienna LE 3.5L V6 GAS Automatic 5 Speed
  Added Feb 2017 • 124 Fuel-ups

  Property of TehSuz

• 21.2 Avg MPG

• My Sienna

  2008 Toyota Sienna LE 3.5L V6 GAS Automatic 5 Speed
  Added Dec 2015 • 16 Fuel-ups

  Property of tribaldude

• 33.2 Avg MPG

• Adapted Van

  2008 Toyota Sienna GAS V6
  Added Nov 2013 • 26 Fuel-ups

  Property of arco99

• 20.4 Avg MPG

• White Van

  2008 Toyota Sienna CE 3.5L V6 GAS Automatic 5 Speed
  Added Aug 2017 • 53 Fuel-ups

  Property of Jmgreenhill

• 21.2 Avg MPG

• Sienna

  2008 Toyota Sienna LE 3.5L V6 GAS Automatic 5 Speed
  Added Sep 2016 • 10 Fuel-ups

  Property of sachingaur

• 17.4 Avg MPG

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