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I like to read the consumption chart as an inverted altitude graph

Discussion in 'Gen 2 Prius Fuel Economy' started by Nelflez, Jun 8, 2023.

  1. Nelflez

    Nelflez New Member

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    Base
    [​IMG]
    Kinda off topic but I do a lot of mountain driving and so I learned to read the consumption chart as if it's an altitude chart, where higher MPG represents a decline in altitude and vise versa lol. Disclaimer: (Doesn't work if you like to race down mountains)
     
    bisco likes this.
  2. Nelflez

    Nelflez New Member

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    2006 Prius
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  3. fuzzy1

    fuzzy1 Senior Member

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    Excluding downhill glides, I get my best MPG on high altitude plains and plateaus. The air drag there is significantly less than at sea level, saving fuel. On traditional non-hybrids, the reduced engine pumping adds additional MPG improvement, though hybrids reclaim a good portion of this through other means (see "Atkinson-cycle engine') without getting to high altitude.

    The climb up to those high altitudes does have some MPG cost. The benefit doesn't show up until the road levels out.
     
    ydpplqbd likes this.
  4. Jafar G

    Jafar G New Member

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    Hello, Did you find something on this, I second what you're looking for.