Mileage has droped

Discussion in 'Gen 3 Prius Fuel Economy' started by barnabas, Apr 12, 2019.

  1. barnabas

    barnabas Junior Member

    Joined:
    Nov 24, 2009
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    Location:
    new hampshire
    Vehicle:
    2010 Prius
    Model:
    III
    Hi all
    I have noticed my winter mileage has dropped. I am the original owner of the 2010 Prius. I now have 84000 on it. I wonder if Florida winter gas has changed. I lost about 3 MPG last year and an additional 4 or 5 this winter. Nothing else has changed. Up until last winter(2017) my normal winter mileage was about 55MPG. Now winter(2018) was about 47MPG. I am not sure if the gas has changed last year and this year or if something else is going on. My 12V battery is good 12.66 V after sitting two days.
    Has anyone else noticed this?

    Thanks in advance
    Barnabas
     
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
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    Plug-in Base
    i don't know about gas, but have you cleaned the egr?

    any changes like tires?

    does she get all her regular maintenance?
     
    Danny3xd () and Raytheeagle like this.
  3. Danny3xd ()

    Danny3xd () Junior Member

    Joined:
    Sep 30, 2018
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    Location:
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    Vehicle:
    2010 Prius
    Model:
    Three
    Just to add. I've had great luck and significant MPG gains by lubing the brake pins.

    Really easy to do and there are lots of vids on it. I strongly suggest our forum mate's "Nutz about Boltz" Pleasant to watch, too

    Nutz About Bolts Prius Maintenance Videos | PriusChat

    Even if not significant. It's just good maintenance to keep 'em lubed.
     
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