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avg MPH

Discussion in 'Gen 3 Prius Main Forum' started by heybuddyjb, Apr 9, 2012.

  1. heybuddyjb

    heybuddyjb New Member

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    i have had my black prius 4 for 3 weeks now and just filled up for the first time. i noticed that when i reset everything and drove home, the avg mph were super low (13) when i know most of the time i was going about 35. anyone else notice that this reading is kinda inaccurate? thanks and glad to be part of the family now :)
     
  2. fotomoto

    fotomoto Senior Member

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    Yeah, "most of the time". No, it's no inaccurate. It registers all the time your car is on including sitting at stop lights. Next time you're on the highway, reset it and watch it register highway speeds.
     
  3. mad-dog-one

    mad-dog-one Prius Enthusiast

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    I think you mean Avg MPG, not "MPH." it should get better when your car warms-up and you drive at a constant speed.
     
  4. revhigh

    revhigh MPG Enthusiast

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    No ... he means MPH ....


    REV
     
  5. F8L

    F8L Protecting Habitat & AG Lands

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    Fotomoto is correct.

    Unless you never stop, slow down or accelerate your average mph will be lower than what you think it ought to be, I.e. your cruising speed. A rule of thumb for my commute is 46mph average indicated speed yet I cruise at 60-65mph for 46miles of my 47mile commute. On ramps, off ramps, and stops really drop the average speed.
     
  6. Socal Pete

    Socal Pete Junior Member

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    He's referring to avg. MPH on the right side under the PWR bar.
     
  7. Slugdoc

    Slugdoc New Member

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    Yup. My highway / city commute: 8 miles in 30 minutes registers just about 17 mph avg.
     
  8. tumbleweed

    tumbleweed Senior Member

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    If you want to test it go down the highway and set the cruise control, then reset the one of the trip odometers. After you have gone a few miles check the average speed, if you haven't changed the cruise control setting the average should be the speed you have been going.