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Fully loaded plus speed makes bad mileage

Discussion in 'Gen 3 Prius Fuel Economy' started by Neohippy, Jan 1, 2017.

  1. Neohippy

    Neohippy Active Member

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    With several threads on how bad mileage can be at high speeds I wanted to do a true test. Recently I felt my Prius could get 42-44mpg at 85-90mph. I filled up with 4 people and the trunk fully loaded and hit Alligator allley from Miami. I stayed at a steady 85-90mph as you can see my average speed was 83mph. I was doing this speed from 1 miles after the gas station. So fully loaded at 90mph was 35mpg. No air conditioner and no heat.
     

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    #1 Neohippy, Jan 1, 2017
    szgabor and Mendel Leisk like this.
  2. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    Thanks for taking a bullet, that musta hurt. (y)
     
    #2 Mendel Leisk, Jan 1, 2017
    Phatlife likes this.
  3. Neohippy

    Neohippy Active Member

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    Dropped down to 80-85mpg and turned on the a/c. Mileage went up 4-5mpg
     

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    #3 Neohippy, Jan 1, 2017
  4. Phatlife

    Phatlife Member

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    must be all down hill? if I go beyond 80 mph is get only 44 mpg

    SM-G935T ?
     
    #4 Phatlife, Jan 4, 2017
  5. szgabor

    szgabor Active Member

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    What did you expect? You should try this with a similar 1.6L midsized sedan like a Corolla and you would be still VERY happy that you have a Prius. :)
     
    #5 szgabor, Jan 5, 2017
  6. Neohippy

    Neohippy Active Member

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    I'm not complaining. I realize this is great mileage all things considered. My other cars get 17mpg at those speeds.
     
    #6 Neohippy, Jan 5, 2017
  7. szgabor

    szgabor Active Member

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    OK, maybe I misunderstood your intention :)
     
    #7 szgabor, Jan 5, 2017
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