Based on data from 42 vehicles, 2,076 fuel-ups and 558,135 miles of driving, the 1999 Toyota Sienna gets a combined Avg MPG of 18.07 with a 0.18 MPG margin of error.

Any Engine Type 3.0L V6 GAS (31) V6 GAS (8) Any Body Style Mini Passenger Van (10) Any Submodel CE (6) XLE (12) LE (15) Other (9)

Below you can see a distribution of the fuel-ups with 164 outliers (7.32%) removed.

Following shows the average MPG of each of the 42 vehicles in the system.

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• Toyota Sienna 1999

  1999 Toyota Sienna CE 3.0L V6 GAS Automatic 4 Speed Mini Passenger Van
  Added Nov 2024 • 76 Fuel-ups

  Property of acehigh30

• 21.4 Avg MPG

• My Sienna

  1999 Toyota Sienna XLE 3.0L V6 GAS Automatic 4 Speed
  Added Jul 2024 • 7 Fuel-ups

  Property of dtseng

• 18.6 Avg MPG

• Sienna

  1999 Toyota Sienna LE 3.0L V6 GAS Automatic 4 Speed
  Added Sep 2018 • 150 Fuel-ups

  Property of john321

• 18.5 Avg MPG

• My Sienna

  1999 Toyota Sienna LE 3.0L V6 GAS Automatic 4 Speed
  Added Oct 2022 • 7 Fuel-ups

  Property of autumnrrizzo

• 13.9 Avg MPG

• Toyota Sienna

  1999 Toyota Sienna LE 3.0L V6 GAS Automatic 4 Speed
  Added Sep 2016 • 3 Fuel-ups

  Property of holdenl

• 87.8 Avg MPG

• My Sienna

  1999 Toyota Sienna XLE 3.0L V6 GAS Automatic 4 Speed
  Added Jun 2021 • 3 Fuel-ups

  Property of jribero

• 21.3 Avg MPG

• Sienna

  1999 Toyota Sienna XLE 3.0L V6 GAS Automatic 4 Speed Mini Passenger Van
  Added Mar 2020 • 33 Fuel-ups

  Property of swallington

• 20.0 Avg MPG

• Sienna

  1999 Toyota Sienna CE 3.0L V6 GAS Automatic 4 Speed
  Added Apr 2017 • 178 Fuel-ups

  Property of deburr

• 41.5 Avg MPG

• Sienna

  1999 Toyota Sienna LE
  Added Mar 2015 • 257 Fuel-ups

  Property of mcsquared

• 18.8 Avg MPG

• Sienna

  1999 Toyota Sienna CE 3.0L V6 GAS Automatic 4 Speed Mini Passenger Van
  Added May 2018 • 25 Fuel-ups

  Property of Ozfarts

• 21.3 Avg MPG

• 1999 Toyota Sienna Green

  1999 Toyota Sienna LE 3.0L V6 GAS Automatic 4 Speed
  Added May 2017 • 13 Fuel-ups

  Property of manfredkk

• 30.4 Avg MPG

• Georges Van

  1999 Toyota Sienna LE 3.0L V6 GAS Automatic 4 Speed Mini Passenger Van
  Added Oct 2017 • 95 Fuel-ups

  Property of gevaslan

• 14.0 Avg MPG

• Georges Van

  1999 Toyota Sienna LE 3.0L V6 GAS Automatic 4 Speed Mini Passenger Van
  Added Jun 2020 • 95 Fuel-ups

  Property of gevaslan

• 14.0 Avg MPG

• My Sienna

  1999 Toyota Sienna CE 3.0L V6 GAS Automatic 4 Speed
  Added Oct 2018 • 3 Fuel-ups

  Property of Ganderton

• 20.0 Avg MPG

• Z Forest Sienna

  1999 Toyota Sienna XLE 3.0L V6 GAS Automatic 4 Speed Mini Passenger Van
  Added Sep 2017 • 69 Fuel-ups

  Property of cnlson

• 19.4 Avg MPG

• But... MY VAN!

  1999 Toyota Sienna XLE 3.0L V6 GAS Automatic 4 Speed Mini Passenger Van
  Added Jun 2017 • 59 Fuel-ups

  Property of NightFury

• 17.6 Avg MPG

• My Sienna

  1999 Toyota Sienna XLE 3.0L V6 GAS Automatic 4 Speed
  Added May 2017 • 15 Fuel-ups

  Property of Rammitt

• 19.7 Avg MPG

• My Sienna

  1999 Toyota Sienna XLE 3.0L V6 GAS Automatic 4 Speed
  Added Jul 2017 • 4 Fuel-ups

  Property of amybluebird

• 17.9 Avg MPG

• Sienna

  1999 Toyota Sienna LE 3.0L V6 GAS Automatic 4 Speed
  Added Aug 2016 • 192 Fuel-ups

  Property of Blerp

• 18.1 Avg MPG

• Toyota Sienna

  1999 Toyota Sienna XLE 3.0L V6 GAS Automatic 4 Speed Mini Passenger Van
  Added Aug 2017 • 6 Fuel-ups

  Property of USAFA82

• 15.7 Avg MPG

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