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Researchers quantify the effect of increasing highway speed on fuel economy

Discussion in 'Gen 3 Prius Fuel Economy' started by Spindifferent, Jan 20, 2013.

  1. Spindifferent

    Spindifferent Member

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    #1 Spindifferent, Jan 20, 2013
  2. bwilson4web

    bwilson4web BMW i3 and Model 3

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    Our 1.8L Prius and the 1.5L Prius c engines use cooled exhaust to avoid high-power enrichment:
    Source: ORNL report

    Bob Wilson
     
    #2 bwilson4web, Jan 21, 2013
  3. Former Member 68813

    Former Member 68813 Senior Member

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    Cooled exhaust or not, the protective enrichment at 80mph was in a Chrysler car per the paper.
     
    #3 Former Member 68813, Jan 21, 2013
  4. Jonny Zero

    Jonny Zero Giggidy

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    Are you talking about the exhaust heat recovery system? I thought it only circulates coolant to the exhaust so the coolant will warm up faster, and it shuts the valves off then the coolant is at temp.
     
    #4 Jonny Zero, Jan 27, 2013
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