Based on data from 83 vehicles, 7,441 fuel-ups and 2,091,675 miles of driving, the 2018 Toyota Sienna gets a combined Avg MPG of 20.41 with a 0.10 MPG margin of error.

Any Engine Type 3.5L V6 GAS (79) Any Body Style Mini Passenger Van (37) Any Submodel Base (1) SE Premium (2) Limited (4) SE (6) Limited Premium (8) XLE Premium (10) LE (11) XLE (41)

Below you can see a distribution of the fuel-ups with 146 outliers (1.92%) removed.

Following shows the average MPG of each of the 83 vehicles in the system.

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• Sienna

  2018 Toyota Sienna XLE Premium 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added May 2023 • 21 Fuel-ups

  Property of servion

• 21.1 Avg MPG

• Sienna XLE 2018

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Nov 2020 • 76 Fuel-ups

  Property of bigdadofsix

• 21.2 Avg MPG

• Mini VanSienna 2.0

  2018 Toyota Sienna Limited Premium 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Apr 2021 • 77 Fuel-ups

  Property of Trini2dBone

• 21.8 Avg MPG

• My Sienna

  2018 Toyota Sienna XLE Premium 3.5L V6 GAS Automatic 8 Speed
  Added Aug 2023 • 23 Fuel-ups

  Property of jrhackett2000

• 20.0 Avg MPG

• 2018 Sienna AWD XLE

  2018 Toyota Sienna XLE Premium 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Jun 2019 • 104 Fuel-ups

  Property of jcXX

• 18.9 Avg MPG

• Sienna - 2018

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Mar 2018 • 181 Fuel-ups

  Property of 4stringdon

• 19.4 Avg MPG

• Minnie

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Jan 2020 • 229 Fuel-ups

  Property of wooska

• 20.8 Avg MPG

• Sienna

  2018 Toyota Sienna LE 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Nov 2022 • 19 Fuel-ups

  Property of Jlewis99

• 19.1 Avg MPG

• 2018 Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added May 2018 • 88 Fuel-ups

  Property of newbyld

• 18.3 Avg MPG

• Sienna

  2018 Toyota Sienna Limited Premium 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Nov 2020 • 97 Fuel-ups

  Property of Yourself

• 16.9 Avg MPG

• #Sienna nuevo

  2018 Toyota Sienna XLE Premium 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Nov 2018 • 115 Fuel-ups

  Property of Jetera

• 19.0 Avg MPG

• Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Jul 2020 • 105 Fuel-ups

  Property of kmm7777

• 22.2 Avg MPG

• My Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Jan 2024 • 9 Fuel-ups

  Property of uninc64

• 20.6 Avg MPG

• My Sienna

  2018 Toyota Sienna XLE Premium 3.5L V6 GAS Automatic 8 Speed
  Added Apr 2021 • 60 Fuel-ups

  Property of opjar01

• 27.4 Avg MPG

• My Sienna

  2018 Toyota Sienna LE 3.5L V6 GAS Automatic 8 Speed
  Added Nov 2019 • 81 Fuel-ups

  Property of ctboston10

• 23.1 Avg MPG

• My Sienna

  2018 Toyota Sienna LE 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Dec 2022 • 39 Fuel-ups

  Property of fuellyhwu

• 22.8 Avg MPG

• Batvan

  2018 Toyota Sienna Limited Premium 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Oct 2019 • 110 Fuel-ups

  Property of fna

• 20.3 Avg MPG

• Vanna Rouge

  2018 Toyota Sienna Limited 3.5L V6 GAS Automatic 8 Speed
  Added Jun 2020 • 56 Fuel-ups

  Property of DieselBoy

• 22.9 Avg MPG

• My Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Mar 2023 • 145 Fuel-ups

  Property of srparadis

• 14.9 Avg MPG

• Sienna

  2018 Toyota Sienna Limited 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Apr 2018 • 85 Fuel-ups

  Property of redsonfire

• 21.0 Avg MPG

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