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Terrible mileage on brand new Prius

Discussion in 'Gen 3 Prius Fuel Economy' started by marjorieflowers, Aug 2, 2015.

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  1. E46Prius

    E46Prius Active Member

    Joined:
    Aug 3, 2015
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    Location:
    Costa Mesa
    Vehicle:
    2015 Prius
    Model:
    Three
    I have a 2015 Prius modelTHREE. I have about 400 miles on it so far. I did a 160 mile round trip and average 53.5mpg with a fully loaded car 4 people and a trunk full of stuff. Yesterday while on a trip to the beach i averaged 57.3mpg. My prius so far is not disappointing in the mpg. The lowest i've seen for a short trip is 43mpg.
     
    #21 E46Prius, Aug 3, 2015
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    congrats and welcome!(y)
     
    #22 bisco, Aug 3, 2015
  3. marjorieflowers

    marjorieflowers Junior Member

    Joined:
    Aug 2, 2015
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    Location:
    Owensboro, KY
    Vehicle:
    2015 Prius
    Model:
    Two
    After two years of driving in good weather and bad, in town and in the highway, with the AC and without, I am still averaging 39.9 mpg. I asked about it yesterday when I was there for another far more serious problem, and his response was, "Huh........"

    I didn't even bother to pursue it.
     
    #23 marjorieflowers, Nov 14, 2017
  4. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    i thought you had a major brake catastrophe?
     
    #24 bisco, Nov 14, 2017
  5. Mendel Leisk

    Mendel Leisk EGR Fanatic

    Joined:
    Oct 17, 2010
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    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    I've posted a response in the @marjorieflowers brake thread:

    Bad caliper | PriusChat

    It sounds similar to an issue we had, brake warning lights and return-to-defaults brake behaviour.
     
    #25 Mendel Leisk, Nov 14, 2017
    bisco likes this.
  6. PosauneGuy

    PosauneGuy Member

    Joined:
    Apr 7, 2011
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    Location:
    California, here I come...
    Vehicle:
    2015 Prius
    Model:
    Two
    IME, tire pressure makes a huge difference. When we bought our 2nd Prius (2015) new, for the first couple of tanks, I could not get 50 mpg, despite having a 2011 that could reliably get mpg in the 50s. Then it occurred to me to check the tire pressure, and they were around 32-34 psi. (I keep my 2011s at 40/38.) As soon as I brought them up to 40/38, I had no problem getting low 50s mpg. Then a couple of weeks ago, I took my 2015 in for the 20,000 maintenance. When I drove out, I noticed that my average mpg kept dropping. Some of it was because the weather was getting colder, but I couldn't get a drive above 50 mpg. Checked the tire pressure, and the dealer dropped pressure to 34/32. After pumping them back up to 40/38, all is good again.
     
    #26 PosauneGuy, Nov 14, 2017
    bisco likes this.
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