Based on data from 72 vehicles, 4,955 fuel-ups and 1,389,860 miles of driving, the 2018 Toyota Sienna gets a combined Avg MPG of 20.24 with a 0.12 MPG margin of error.

Any Engine Type 3.5L V6 GAS (68) Any Body Style Mini Passenger Van (32) Any Submodel Base (1) SE Premium (2) Limited (4) SE (6) LE (7) XLE Premium (7) Limited Premium (8) XLE (37)

Below you can see a distribution of the fuel-ups with 85 outliers (1.69%) removed.

Following shows the average MPG of each of the 72 vehicles in the system.

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• 2018 Sienna Brown

  2018 Toyota Sienna SE 3.5L V6 GAS Automatic 8 Speed
  Added Feb 2019 • 33 Fuel-ups

  Property of wenkate1992

• 22.8 Avg MPG

• My Sienna

  2018 Toyota Sienna XLE Premium 3.5L V6 GAS Automatic 8 Speed
  Added May 2020 • 151 Fuel-ups

  Property of AliciaC82

• 19.6 Avg MPG

• My Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Jun 2018 • 305 Fuel-ups

  Property of brokethru

• 23.6 Avg MPG

• My Sienna

  2018 Toyota Sienna Limited Premium 3.5L V6 GAS Automatic 8 Speed
  Added Jun 2020 • 67 Fuel-ups

  Property of liangchihao

• 18.0 Avg MPG

• 2018 Red Sienna LE FWD

  2018 Toyota Sienna LE 3.5L V6 GAS Automatic 8 Speed
  Added Feb 2021 • 69 Fuel-ups

  Property of rugbymarine

• 23.8 Avg MPG

• 2018 Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added May 2018 • 68 Fuel-ups

  Property of newbyld

• 18.1 Avg MPG

• 2018 Sienna XLE

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Dec 2019 • 60 Fuel-ups

  Property of jswitze

• 21.5 Avg MPG

• Violet

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Oct 2018 • 173 Fuel-ups

  Property of pinoyxr

• 18.9 Avg MPG

• My Sienna

  2018 Toyota Sienna SE 3.5L V6 GAS Automatic 8 Speed
  Added Feb 2020 • 114 Fuel-ups

  Property of mindiwalters

• 19.6 Avg MPG

• Med Van 03

  2018 Toyota Sienna 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Aug 2021 • 148 Fuel-ups

  Property of shawley2868

• 21.3 Avg MPG

• My Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Sep 2018 • 160 Fuel-ups

  Property of prewchris

• 19.8 Avg MPG

• Minnie

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Jan 2020 • 126 Fuel-ups

  Property of wooska

• 22.0 Avg MPG

• My Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Jul 2018 • 186 Fuel-ups

  Property of Joelyisthebest

• 19.6 Avg MPG

• Big Pearl Van

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Mar 2018 • 119 Fuel-ups

  Property of priusrmb

• 20.9 Avg MPG

• My Sienna

  2018 Toyota Sienna XLE
  Added Jan 2018 • 213 Fuel-ups

  Property of doulamama

• 20.4 Avg MPG

• 1 Sienna

  2018 Toyota Sienna Limited 3.5L V6 GAS Automatic 8 Speed
  Added Jul 2018 • 116 Fuel-ups

  Property of Isophetry

• 17.4 Avg MPG

• 2018 Sienna AWD XLE

  2018 Toyota Sienna XLE Premium 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Jun 2019 • 63 Fuel-ups

  Property of jcXX

• 20.8 Avg MPG

• 2018 Sienna

  2018 Toyota Sienna XLE Premium 3.5L V6 GAS Automatic 8 Speed
  Added Oct 2019 • 146 Fuel-ups

  Property of brengamgee

• 19.1 Avg MPG

• TOYOTA Sienna

  2018 Toyota Sienna SE Premium 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Jun 2021 • 47 Fuel-ups

  Property of raymond0505

• 21.1 Avg MPG

• Sienna

  2018 Toyota Sienna Limited 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Apr 2018 • 63 Fuel-ups

  Property of redsonfire

• 21.4 Avg MPG

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