Based on data from 89 vehicles, 8,016 fuel-ups and 2,255,953 miles of driving, the 2018 Toyota Sienna gets a combined Avg MPG of 20.47 with a 0.10 MPG margin of error.

Any Engine Type 3.5L V6 GAS (85) Any Body Style Mini Passenger Van (39) Any Submodel Base (1) L (1) SE Premium (3) Limited (5) SE (6) Limited Premium (8) XLE Premium (10) LE (13) XLE (42)

Below you can see a distribution of the fuel-ups with 160 outliers (1.96%) removed.

Following shows the average MPG of each of the 89 vehicles in the system.

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• My Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Sep 2018 • 282 Fuel-ups

  Property of prewchris

• 20.2 Avg MPG

• Sienna

  2018 Toyota Sienna Limited 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Apr 2018 • 94 Fuel-ups

  Property of redsonfire

• 21.1 Avg MPG

• Sienna

  2018 Toyota Sienna XLE Premium 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added May 2023 • 30 Fuel-ups

  Property of servion

• 21.7 Avg MPG

• 2018 Sienna Brown 235/55 R18

  2018 Toyota Sienna SE 3.5L V6 GAS Automatic 8 Speed
  Added Feb 2019 • 50 Fuel-ups

  Property of wenkate1992

• 23.1 Avg MPG

• Med Van 03

  2018 Toyota Sienna 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Aug 2021 • 270 Fuel-ups

  Property of shawley2868

• 22.3 Avg MPG

• My Sienna

  2018 Toyota Sienna XLE Premium 3.5L V6 GAS Automatic 8 Speed
  Added Dec 2023 • 5 Fuel-ups

  Property of jpeek29208

• 21.9 Avg MPG

• Sienna

  2018 Toyota Sienna Limited Premium 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Nov 2020 • 100 Fuel-ups

  Property of Yourself

• 17.0 Avg MPG

• Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Jul 2020 • 106 Fuel-ups

  Property of kmm7777

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

  Property of fuellyhwu

• 22.8 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

• 18 Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added May 2019 • 240 Fuel-ups

  Property of Sellitwithjohn

• 24.8 Avg MPG

• 2018 Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Jul 2023 • 4 Fuel-ups

  Property of doug16

• 22.6 Avg MPG

• My Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Aug 2018 • 78 Fuel-ups

  Property of Robert_M

• 21.4 Avg MPG

• Swagger Wagon

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Sep 2018 • 117 Fuel-ups

  Property of brockeverly

• 21.6 Avg MPG

• 2018 Toyota Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Oct 2018 • 76 Fuel-ups

  Property of bayarea2007

• 26.1 Avg MPG

• My Sienna

  2018 Toyota Sienna SE Premium 3.5L V6 GAS Automatic 8 Speed
  Added Mar 2021 • 40 Fuel-ups

  Property of Djtux

• 23.4 Avg MPG

• My Sienna

  2018 Toyota Sienna XLE
  Added Jan 2018 • 223 Fuel-ups

  Property of doulamama

• 20.4 Avg MPG

• Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Jan 2019 • 109 Fuel-ups

  Property of Coreymccraw

• 20.4 Avg MPG

• My Sienna

  2018 Toyota Sienna LE 3.5L V6 GAS Automatic 8 Speed
  Added Sep 2021 • 3 Fuel-ups

  Property of johnswinbornejr

• 25.5 Avg MPG

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