Based on data from 37 vehicles, 4,280 fuel-ups and 1,135,738 miles of driving, the 2020 Toyota Sienna gets a combined Avg MPG of 20.95 with a 0.13 MPG margin of error.

Any Engine Type 3.5L V6 GAS (33) V6 GAS (1) Any Body Style Mini Passenger Van (10) Any Submodel Base (1) Limited (1) CE (1) SE Premium (1) XLE Premium (1) Limited Premium (2) SE (4) LE (8) XLE (18)

Below you can see a distribution of the fuel-ups with 122 outliers (2.77%) removed.

Following shows the average MPG of each of the 37 vehicles in the system.

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• My Sienna

  2020 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Jun 2021 • 35 Fuel-ups

  Property of NavyGuyAN

• 25.5 Avg MPG

• My Sienna

  2020 Toyota Sienna SE 3.5L V6 GAS Automatic 8 Speed
  Added Jun 2020 • 18 Fuel-ups

  Property of mfierro211

• 105.8 Avg MPG

• Sienna LE 2020

  2020 Toyota Sienna LE
  Added Sep 2019 • 308 Fuel-ups

  Property of Polin2012

• 20.7 Avg MPG

• My Sienna

  2020 Toyota Sienna SE 3.5L V6 GAS Automatic 8 Speed
  Added Apr 2023 • 7 Fuel-ups

  Property of chaachan226

• 24.3 Avg MPG

• My Sienna Predawn Gray Mica/Bisque

  2020 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Mar 2020 • 200 Fuel-ups

  Property of kwrickman

• 20.6 Avg MPG

• 2020 Sienna

  2020 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Jan 2022 • 25 Fuel-ups

  Property of rwmlex

• 20.8 Avg MPG

• Med Van 04

  2020 Toyota Sienna 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Sep 2021 • 17 Fuel-ups

  Property of shawley2868

• 26.1 Avg MPG

• Sienna 2020

  2020 Toyota Sienna LE 3.5L V6 GAS Automatic 8 Speed
  Added Jul 2020 • 8 Fuel-ups

  Property of pinkydbasler

• 32.7 Avg MPG

• Sienna

  2020 Toyota Sienna XLE Premium 3.5L V6 GAS Automatic 8 Speed
  Added Feb 2020 • 63 Fuel-ups

  Property of blschuster

• 18.6 Avg MPG

• Lolly Sienna

  2020 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Jan 2021 • 5 Fuel-ups

  Property of Bunnybeer

• 23.6 Avg MPG

• Sienna

  2020 Toyota Sienna Limited 3.5L V6 GAS Automatic 8 Speed
  Added Sep 2019 • 51 Fuel-ups

  Property of rockyrcr

• 18.1 Avg MPG

• Sienna

  2020 Toyota Sienna LE 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Oct 2020 • 11 Fuel-ups

  Property of jayjma50

• 5.3 Avg MPG

• Sienna Van

  2020 Toyota Sienna CE 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Oct 2020 • 13 Fuel-ups

  Property of crunchiespg

• 20.5 Avg MPG

• My Sienna

  2020 Toyota Sienna Limited Premium 3.5L V6 GAS Automatic 8 Speed
  Added Feb 2020 • 20 Fuel-ups

  Property of trimbledt

• 20.5 Avg MPG

• Toyota Sienna

  2020 Toyota Sienna SE 3.5L V6 GAS Automatic 8 Speed
  Added Aug 2020 • 5 Fuel-ups

  Property of ranchworld

• 22.7 Avg MPG

• 2020 Sienna

  2020 Toyota Sienna SE 3.5L V6 GAS
  Added Jun 2019 • 49 Fuel-ups

  Property of bschaaf

• 22.5 Avg MPG

• My Sienna

  2020 Toyota Sienna LE 3.5L V6 GAS Automatic 8 Speed
  Added May 2020 • 3 Fuel-ups

  Property of Sunny4

• 22.9 Avg MPG

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