Based on data from 259 vehicles, 26,188 fuel-ups and 7,008,443 miles of driving, the 2015 Toyota Sienna gets a combined Avg MPG of 19.43 with a 0.04 MPG margin of error.

Any Engine Type 3.5L V6 GAS (257) Any Body Style Mini Passenger Van (86) Any Submodel L (5) Base (7) SE (28) Limited (35) LE (70) XLE (112) Other (2)

Below you can see a distribution of the fuel-ups with 985 outliers (3.62%) removed.

Following shows the average MPG of each of the 259 vehicles in the system.

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• My Sienna

  2015 Toyota Sienna LE 3.5L V6 GAS Automatic 6 Speed
  Added May 2018 • 163 Fuel-ups

  Property of gary423

• 22.9 Avg MPG

• Sienna

  2015 Toyota Sienna SE 3.5L V6 GAS Automatic 6 Speed Mini Passenger Van
  Added Nov 2017 • 385 Fuel-ups

  Property of erittenhouse

• 18.6 Avg MPG

• Toyota Sienna

  2015 Toyota Sienna XLE 3.5L V6 GAS Automatic 6 Speed Mini Passenger Van
  Added Nov 2018 • 75 Fuel-ups

  Property of wglenn2002

• 22.7 Avg MPG

• My Sienna

  2015 Toyota Sienna Limited 3.5L V6 GAS Automatic 6 Speed
  Added Apr 2022 • 107 Fuel-ups

  Property of RandallnLucia

• 22.6 Avg MPG

• My Sienna

  2015 Toyota Sienna LE 3.5L V6 GAS Automatic 6 Speed Mini Passenger Van
  Added Aug 2021 • 244 Fuel-ups

  Property of mashfaq

• 19.0 Avg MPG

• Sienna 2015 XLE AWD

  2015 Toyota Sienna XLE 3.5L V6 GAS Automatic 6 Speed
  Added Sep 2016 • 162 Fuel-ups

  Property of highwei

• 19.1 Avg MPG

• Trolley

  2015 Toyota Sienna XLE 3.5L V6 GAS Automatic 6 Speed
  Added May 2022 • 140 Fuel-ups

  Property of troydwwalker

• 22.1 Avg MPG

• 2015 Sienna

  2015 Toyota Sienna LE 3.5L V6 GAS Automatic 6 Speed
  Added Mar 2022 • 103 Fuel-ups

  Property of dl97aggie

• 19.7 Avg MPG

• Sienna

  2015 Toyota Sienna XLE 3.5L V6 GAS Automatic 6 Speed Mini Passenger Van
  Added Oct 2017 • 241 Fuel-ups

  Property of djwiegel

• 21.2 Avg MPG

• 15 Sienna

  2015 Toyota Sienna LE 3.5L V6 GAS Automatic 6 Speed Mini Passenger Van
  Added Nov 2019 • 269 Fuel-ups

  Property of goldtige

• 21.8 Avg MPG

• My Sienna

  2015 Toyota Sienna XLE 3.5L V6 GAS Automatic 6 Speed
  Added Jul 2024 • 9 Fuel-ups

  Property of DragonLee

• 17.4 Avg MPG

• Toyota Sienna

  2015 Toyota Sienna XLE 3.5L V6 GAS Automatic 6 Speed Mini Passenger Van
  Added Oct 2017 • 315 Fuel-ups

  Property of saltygunner

• 19.6 Avg MPG

• Blue Sienna

  2015 Toyota Sienna XLE 3.5L V6 GAS Automatic 6 Speed
  Added Aug 2021 • 122 Fuel-ups

  Property of vdeal

• 18.0 Avg MPG

• Black Panther

  2015 Toyota Sienna XLE 3.5L V6 GAS Automatic 6 Speed
  Added Sep 2023 • 69 Fuel-ups

  Property of theslimjim

• 19.7 Avg MPG

• Stanley

  2015 Toyota Sienna SE 3.5L V6 GAS Automatic 6 Speed
  Added Sep 2017 • 158 Fuel-ups

  Property of coliveros

• 14.1 Avg MPG

• Sienna

  2015 Toyota Sienna XLE 3.5L V6 GAS Automatic 6 Speed Mini Passenger Van
  Added Jan 2024 • 22 Fuel-ups

  Property of cjwilsontech

• 20.9 Avg MPG

• 2015 Toyota Sienna

  2015 Toyota Sienna Limited 3.5L V6 GAS Automatic 6 Speed
  Added Sep 2017 • 296 Fuel-ups

  Property of cwdoll

• 17.8 Avg MPG

• My Sienna

  2015 Toyota Sienna SE 3.5L V6 GAS Automatic 6 Speed
  Added Nov 2018 • 102 Fuel-ups

  Property of SLafler

• 17.7 Avg MPG

• My Sienna

  2015 Toyota Sienna XLE 3.5L V6 GAS Automatic 6 Speed
  Added Jun 2024 • 20 Fuel-ups

  Property of cmcm

• 17.7 Avg MPG

• 2015 Sienna

  2015 Toyota Sienna XLE 3.5L V6 GAS Automatic 6 Speed
  Added Mar 2019 • 9 Fuel-ups

  Property of jhawkfan44

• 22.3 Avg MPG

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