Based on data from 40 vehicles, 4,979 fuel-ups and 1,315,972 miles of driving, the 2020 Toyota Sienna gets a combined Avg MPG of 20.86 with a 0.12 MPG margin of error.

Any Engine Type 3.5L V6 GAS (36) V6 GAS (1) Any Body Style Mini Passenger Van (11) Any Submodel Base (1) Limited (1) CE (1) SE Premium (1) XLE Premium (1) Limited Premium (2) SE (4) LE (8) XLE (21)

Below you can see a distribution of the fuel-ups with 220 outliers (4.23%) removed.

Following shows the average MPG of each of the 40 vehicles in the system.

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• 2020 Sienna

  2020 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Nov 2019 • 461 Fuel-ups

  Property of Bodine95

• 20.5 Avg MPG

• My Sienna

  2020 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Dec 2021 • 294 Fuel-ups

  Property of Kb2453

• 19.4 Avg MPG

• My Sienna

  2020 Toyota Sienna XLE
  Added Dec 2019 • 121 Fuel-ups

  Property of tbgree00

• 23.4 Avg MPG

• 2020 Toyota Sienna

  2020 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Nov 2020 • 372 Fuel-ups

  Property of Biodiesel99

• 21.6 Avg MPG

• !2020 Sienna

  2020 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Dec 2024 • 21 Fuel-ups

  Property of freeland1003

• 19.1 Avg MPG

• Toyota Sienna

  2020 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Aug 2020 • 120 Fuel-ups

  Property of nbettger

• 21.6 Avg MPG

• Staypuff marshmallow van

  2020 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Nov 2024 • 26 Fuel-ups

  Property of olblue84

• 23.4 Avg MPG

• Sienna

  2020 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Apr 2021 • 253 Fuel-ups

  Property of 74Scout

• 20.4 Avg MPG

• Sienna

  2020 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Dec 2019 • 305 Fuel-ups

  Property of michaelh950

• 21.3 Avg MPG

• Sienna LE 2020

  2020 Toyota Sienna LE
  Added Sep 2019 • 359 Fuel-ups

  Property of Polin2012

• 20.6 Avg MPG

• My Sienna

  2020 Toyota Sienna LE 3.5L V6 GAS Automatic 8 Speed
  Added Jun 2020 • 254 Fuel-ups

  Property of batesi71

• 19.3 Avg MPG

• My Sienna

  2020 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Sep 2023 • 251 Fuel-ups

  Property of TomEz

• 24.6 Avg MPG

• Sienna

  2020 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Jan 2023 • 164 Fuel-ups

  Property of ktmachayan

• 19.9 Avg MPG

• 2020 Sienna

  2020 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Jan 2022 • 28 Fuel-ups

  Property of rwmlex

• 20.3 Avg MPG

• SIENNA-George's

  2020 Toyota Sienna SE Premium V6 GAS Automatic 7 Speed Mini Passenger Van
  Added Nov 2019 • 91 Fuel-ups

  Property of nebugeorge

• 21.7 Avg MPG

• 2020 Toyota Sienna Van

  2020 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Jan 2021 • 246 Fuel-ups

  Property of tomnmarlie

• 22.2 Avg MPG

• My Sienna

  2020 Toyota Sienna LE 3.5L V6 GAS Automatic 8 Speed
  Added Nov 2021 • 96 Fuel-ups

  Property of RSarfaty

• 17.7 Avg MPG

• My Sienna

  2020 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Dec 2019 • 266 Fuel-ups

  Property of tabgrmi

• 24.3 Avg MPG

• Bev

  2020 Toyota Sienna Limited Premium 3.5L V6 GAS Automatic 8 Speed
  Added Feb 2020 • 177 Fuel-ups

  Property of DCTraveler

• 20.3 Avg MPG

• RISE UP

  2020 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Jan 2020 • 295 Fuel-ups

  Property of pcrinkydink

• 17.1 Avg MPG

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