Based on data from 83 vehicles, 7,416 fuel-ups and 2,084,543 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 145 outliers (1.92%) removed.

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

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• My Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Jun 2018 • 471 Fuel-ups

  Property of brokethru

• 23.4 Avg MPG

• Hugo

  2018 Toyota Sienna XLE Premium 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Dec 2018 • 335 Fuel-ups

  Property of Brendan

• 22.6 Avg MPG

• 2018 Sienna

  2018 Toyota Sienna XLE Premium 3.5L V6 GAS Automatic 8 Speed
  Added Oct 2019 • 358 Fuel-ups

  Property of brengamgee

• 18.4 Avg MPG

• My Sienna

  2018 Toyota Sienna SE 3.5L V6 GAS Automatic 8 Speed
  Added Feb 2020 • 219 Fuel-ups

  Property of mindiwalters

• 21.0 Avg MPG

• Toyota Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Dec 2023 • 26 Fuel-ups

  Property of Ssolanyk1

• 23.2 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

• 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

• 2018 Sienna XLE

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Dec 2019 • 140 Fuel-ups

  Property of jswitze

• 20.9 Avg MPG

• My Sienna

  2018 Toyota Sienna Limited Premium 3.5L V6 GAS Automatic 8 Speed
  Added Jun 2020 • 171 Fuel-ups

  Property of liangchihao

• 18.8 Avg MPG

• My Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Jul 2018 • 217 Fuel-ups

  Property of Joelyisthebest

• 19.7 Avg MPG

• Sienna

  2018 Toyota Sienna Limited Premium 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Oct 2018 • 229 Fuel-ups

  Property of almeisner

• 21.9 Avg MPG

• My Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Sep 2018 • 260 Fuel-ups

  Property of prewchris

• 20.1 Avg MPG

• 2018 Red Sienna LE FWD

  2018 Toyota Sienna LE 3.5L V6 GAS Automatic 8 Speed
  Added Feb 2021 • 181 Fuel-ups

  Property of rugbymarine

• 23.6 Avg MPG

• 18 Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Apr 2021 • 207 Fuel-ups

  Property of jaharris67

• 21.1 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

• TOYOTA Sienna

  2018 Toyota Sienna SE Premium 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Jun 2021 • 120 Fuel-ups

  Property of raymond0505

• 21.1 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

• My Sienna

  2018 Toyota Sienna XLE Premium 3.5L V6 GAS Automatic 8 Speed
  Added May 2020 • 266 Fuel-ups

  Property of AliciaC82

• 19.2 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

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