Based on data from 270 vehicles, 27,726 fuel-ups and 7,433,838 miles of driving, the 2015 Toyota Sienna gets a combined Avg MPG of 19.41 with a 0.04 MPG margin of error.

Any Engine Type 3.5L V6 GAS (268) Any Body Style Mini Passenger Van (91) Any Submodel L (5) Base (6) SE (28) Limited (37) LE (73) XLE (119) Other (2)

Below you can see a distribution of the fuel-ups with 1042 outliers (3.62%) removed.

Following shows the average MPG of each of the 270 vehicles in the system.

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• Sienna

  2015 Toyota Sienna LE 3.5L V6 GAS Automatic 6 Speed
  Added Feb 2018 • 348 Fuel-ups

  Property of AJK1

• 21.5 Avg MPG

• SAG Wagon

  2015 Toyota Sienna LE 3.5L V6 GAS Automatic 6 Speed Mini Passenger Van
  Added Jan 2025 • 105 Fuel-ups

  Property of themela2501

• 20.6 Avg MPG

• My Sienna

  2015 Toyota Sienna XLE 3.5L V6 GAS Automatic 6 Speed
  Added Aug 2021 • 164 Fuel-ups

  Property of ryleeej

• 20.6 Avg MPG

• Sienna

  2015 Toyota Sienna SE 3.5L V6 GAS Automatic 6 Speed Mini Passenger Van
  Added Mar 2020 • 170 Fuel-ups

  Property of OMARHDIAZ

• 18.1 Avg MPG

• My Sienna

  2015 Toyota Sienna XLE 3.5L V6 GAS Automatic 6 Speed
  Added Dec 2024 • 34 Fuel-ups

  Property of Confirmlogin

• 16.0 Avg MPG

• Sienna

  2015 Toyota Sienna XLE 3.5L V6 GAS Automatic 6 Speed Mini Passenger Van
  Added Oct 2017 • 504 Fuel-ups

  Property of newname23

• 19.1 Avg MPG

• Black Panther

  2015 Toyota Sienna XLE 3.5L V6 GAS Automatic 6 Speed
  Added Sep 2023 • 92 Fuel-ups

  Property of theslimjim

• 19.7 Avg MPG

• Sienna

  2015 Toyota Sienna XLE 3.5L V6 GAS Automatic 6 Speed
  Added Jul 2015 • 325 Fuel-ups

  Property of avey

• 17.2 Avg MPG

• Mommy's Mobile

  2015 Toyota Sienna Limited 3.5L V6 GAS
  Added Oct 2019 • 157 Fuel-ups

  Property of 1sweetpea

• 16.4 Avg MPG

• My Sienna

  2015 Toyota Sienna LE 3.5L V6 GAS Automatic 6 Speed
  Added May 2025 • 3 Fuel-ups

  Property of mariolo2000

• 24.9 Avg MPG

• My Sienna

  2015 Toyota Sienna XLE 3.5L V6 GAS Automatic 6 Speed
  Added Jul 2024 • 32 Fuel-ups

  Property of DragonLee

• 19.1 Avg MPG

• My Sienna

  2015 Toyota Sienna LE 3.5L V6 GAS Automatic 6 Speed
  Added Jan 2022 • 198 Fuel-ups

  Property of toju

• 18.5 Avg MPG

• Toyota Sienna

  2015 Toyota Sienna XLE 3.5L V6 GAS Automatic 6 Speed
  Added Dec 2024 • 24 Fuel-ups

  Property of tuckermray

• 18.4 Avg MPG

• My Sienna

  2015 Toyota Sienna LE 3.5L V6 GAS Automatic 6 Speed
  Added May 2017 • 489 Fuel-ups

  Property of johnelarson

• 21.2 Avg MPG

• My Sienna

  2015 Toyota Sienna SE 3.5L V6 GAS Automatic 6 Speed
  Added Nov 2023 • 53 Fuel-ups

  Property of timrob181

• 19.7 Avg MPG

• My Sienna

  2015 Toyota Sienna LE 3.5L V6 GAS Automatic 6 Speed Mini Passenger Van
  Added Aug 2021 • 262 Fuel-ups

  Property of mashfaq

• 18.8 Avg MPG

• Foxx Shuttle MK 2 AKA The Grey Ghost

  2015 Toyota Sienna XLE 3.5L V6 GAS Automatic 6 Speed
  Added Jul 2018 • 476 Fuel-ups

  Property of Fyremane

• 19.8 Avg MPG

• Sienna 2015

  2015 Toyota Sienna LE 3.5L V6 GAS Automatic 6 Speed Mini Passenger Van
  Added Feb 2016 • 451 Fuel-ups

  Property of MITBeta

• 21.7 Avg MPG

• Toyota Sienna

  2015 Toyota Sienna XLE 3.5L V6 GAS Automatic 6 Speed
  Added May 2018 • 167 Fuel-ups

  Property of captainfodder

• 18.3 Avg MPG

• Toyota Sienna Limited

  2015 Toyota Sienna Limited 3.5L V6 GAS Automatic 6 Speed
  Added Aug 2016 • 399 Fuel-ups

  Property of bernardwai

• 16.2 Avg MPG

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