Based on data from 71 vehicles, 3,925 fuel-ups and 1,100,386 miles of driving, the 2018 Toyota Sienna gets a combined Avg MPG of 20.23 with a 0.14 MPG margin of error.

Any Engine Type 3.5L V6 GAS (67) Any Body Style Mini Passenger Van (31) Any Submodel SE Premium (2) Limited (4) SE (6) XLE Premium (6) LE (7) Limited Premium (8) XLE (38)

Below you can see a distribution of the fuel-ups with 60 outliers (1.51%) removed.

Following shows the average MPG of each of the 71 vehicles in the system.

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• My Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Sep 2018 • 125 Fuel-ups

  Property of prewchris

• 20.0 Avg MPG

• 18 Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added May 2019 • 119 Fuel-ups

  Property of Sellitwithjohn

• 24.5 Avg MPG

• My Sienna

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Jun 2018 • 233 Fuel-ups

  Property of brokethru

• 23.7 Avg MPG

• My Sienna

  2018 Toyota Sienna SE 3.5L V6 GAS Automatic 8 Speed
  Added Feb 2020 • 66 Fuel-ups

  Property of mindiwalters

• 21.1 Avg MPG

• 3 Sienna

  2018 Toyota Sienna Limited 3.5L V6 GAS Automatic 8 Speed
  Added Jul 2018 • 82 Fuel-ups

  Property of Isophetry

• 17.5 Avg MPG

• Violet

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Oct 2018 • 136 Fuel-ups

  Property of pinoyxr

• 19.2 Avg MPG

• My Sienna

  2018 Toyota Sienna XLE Premium 3.5L V6 GAS Automatic 8 Speed
  Added May 2020 • 86 Fuel-ups

  Property of AliciaC82

• 19.3 Avg MPG

• Sienna - 2018

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

  Property of 4stringdon

• 20.2 Avg MPG

• Hugo

  2018 Toyota Sienna XLE Premium 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Dec 2018 • 168 Fuel-ups

  Property of Brendan

• 21.9 Avg MPG

• My Sienna

  2018 Toyota Sienna XLE
  Added Jan 2018 • 176 Fuel-ups

  Property of doulamama

• 20.6 Avg MPG

• 2018 Sienna

  2018 Toyota Sienna XLE Premium 3.5L V6 GAS Automatic 8 Speed
  Added Oct 2019 • 88 Fuel-ups

  Property of brengamgee

• 18.9 Avg MPG

• My Sienna

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

  Property of mattspits

• 21.6 Avg MPG

• Mini VanSienna 2.0

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

  Property of Trini2dBone

• 23.3 Avg MPG

• Batvan

  2018 Toyota Sienna Limited Premium 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Oct 2019 • 44 Fuel-ups

  Property of fna

• 19.8 Avg MPG

• Swagger Wagon

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed
  Added Sep 2018 • 74 Fuel-ups

  Property of brockeverly

• 22.7 Avg MPG

• 2018 Red Sienna LE FWD

  2018 Toyota Sienna LE 3.5L V6 GAS Automatic 8 Speed
  Added Feb 2021 • 21 Fuel-ups

  Property of rugbymarine

• 24.0 Avg MPG

• Vanna Rouge

  2018 Toyota Sienna Limited 3.5L V6 GAS Automatic 8 Speed
  Added Jun 2020 • 18 Fuel-ups

  Property of DieselBoy

• 22.9 Avg MPG

• TOYOTA Sienna

  2018 Toyota Sienna SE Premium 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Jun 2021 • 14 Fuel-ups

  Property of raymond0505

• 22.9 Avg MPG

• My Sienna

  2018 Toyota Sienna Limited Premium 3.5L V6 GAS Automatic 8 Speed
  Added Jun 2020 • 23 Fuel-ups

  Property of liangchihao

• 15.2 Avg MPG

• Minnie

  2018 Toyota Sienna XLE 3.5L V6 GAS Automatic 8 Speed Mini Passenger Van
  Added Jan 2020 • 58 Fuel-ups

  Property of wooska

• 21.2 Avg MPG

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