22.2 MPG going Uphill 4.7 Miles

Discussion in 'Gen 3 Prius Fuel Economy' started by prius4owner, Apr 11, 2012.

  1. wesayso

    wesayso Member

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    :pop2:[​IMG][​IMG][​IMG][​IMG][​IMG][​IMG][​IMG][​IMG][​IMG][​IMG][​IMG][​IMG]
     
  2. justana

    justana Junior Member

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    Have you measured average MPG up and downhill yet?
     
  3. GWhizzer

    GWhizzer not so Senior Member

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    Even better, on a steeper downhill regenerative braking will store a good portion of that downhill energy for later use. In a non-hybrid, it would just been burned off and wasted. So even after levelling off the hybrid will get some *free* mileage that a non-hybrid would not. :)
     
  4. alfon

    alfon Senior Member

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    We live at sea level and every month or so go up Highway 26 for about 40 miles and get our spring water.

    Elevation at max is 1640 feet. If I reset either trip A or B and
    from a cold start when I reach the first pass which is about
    1,500 feet my mpg gauge is reading about 38 mpg this is about
    20 miles or so into the trip.

    At the 1640 ft level about 10 miles away the mpg gauge will read
    about 42-44 mpg. When we get to the spring water fountain
    it will be about 45 mpg.

    When we return back to sea level the MPG gauge will usually read
    about 50-56 mpg depending on the weather conditions.

    In summer it will be about 56 mpg, in winter 50 mpg or lower, calculated of course will be about 3.5 mpg less than indicated mpg.
     
  5. prius4owner

    prius4owner Member

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    Good News.

    Today I drove the same route downhill 4.7miles. I got 99.9 MPG, and battery with all 8 bars full. :rockon:
     
  6. hoddy4

    hoddy4 New Member

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    What was your mileage going down hill in the Prius, around 70mpg?
     
  7. Big Steve

    Big Steve ramblin wreck

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    I love the tongue firmly in cheek answer.
     
  8. pacohaas

    pacohaas Junior Member

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    You were up on that hill for quite some time ;). Good to see newton's thoughts on energy are still holding true.
     
  9. Codyroo

    Codyroo Senior Member

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    I just drove up a hill (2.7 miles @ 17% grade) and my scangauge was showing 6 - 10 mpg the whole way up. Worse still, going downhill on it (engine not fully warmed up, but above 159F when I started) B mode was limiting my MPG's to 50 MPG or so. Speed limit was 20 mph with many switchback turns.
     
  10. walter Lee

    walter Lee Hypermiling Padawan

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    (22+100)mpg/2 = est +61 mpg + a full battery :D
     
  11. F8L

    F8L Protecting Habitat & AG Lands

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    I think his screen display maxed out and his real mpg was higher than 99.9mpg. :)
     
  12. pacohaas

    pacohaas Junior Member

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    Yeah, would need to reset the trip meter before the next round trip for an accurate(ish) round trip MPG.
     
  13. fuzzy1

    fuzzy1 Senior Member

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    You know better than that. 22 up and 100 down really averages out to 36 mpg roundtrip. Even in the more likely case that the downhill mpg was infinite, with the display capped at 100, the round trip can't be any better than 44 mpg.
     
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