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100 MPG first 5 Mins, bug?

Discussion in 'Gen 2 Prius Main Forum' started by usbseawolf2000, Jul 2, 2009.

  1. usbseawolf2000

    usbseawolf2000 HSD PhD

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    Vehicle:
    2012 Prius Plug-in
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    Plug-in Base
    I swapped back to the Kyowa 17" wheels about 3 tanks ago. Yesterday, I left work in the usual route and got 100 MPG for the first 5 minutes! Normally I get 35-40 MPG.

    Half a mile from the parking lot is a traffic light. It takes about one minute and then left turn into 55 MPH road.

    It must be a bug because I initially had 49.9 MPG average. As I accelerated, it dropped to 49.8 MPG.

    Did it happen to anyone else ?

    [​IMG]
     

    Attached Files:

    #1 usbseawolf2000, Jul 2, 2009
  2. bwilson4web

    bwilson4web BMW i3 and Model 3

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    Problem?
    [​IMG]

    Recipe

    • Start with a warmed-up, Prius, after driving for say 20-30 minutes so engine is warm and battery charged (NOTE: 'forced charge' could be used but I don't endorse this practice.)
    • Stop car and reset display and wait for 5 minute update
    • Slowly accelerate in EV to 6 mph and get 100 MPG instant bar
    • Stop and wait 5 minutes -- a 5 minute bar will fill with 100 MPG space
    • Repeat 5 more times starting with "Slowly accelerate in EV to 6 mph ..."
    Take a photo and enjoy. <GRINS>

    Bob Wilson
     
    #2 bwilson4web, Jul 3, 2009
  3. usbseawolf2000

    usbseawolf2000 HSD PhD

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    Plug-in Base
    Bob,

    I didn't even step out for lunch that day as I brought food. Therefore the car was parked for more than 8 hours.

    It was a cold start and I normally got 35-40 MPG (also for days I drive for lunch) as mentioned. This time I got 100 MPG which I can not explain and it does not make sense.

    This is very unusual because for 99.6k miles I have driven, this is the first time it has happened to me.
     
    #3 usbseawolf2000, Jul 3, 2009
  4. Rokeby

    Rokeby Member

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    2008 Prius
    Could this be an early indication of a developing 12v battery failure?

    Given ~4 year expected service life it would be somewhat early...
    Still, a possible maybe. :(

    [EDIT] I know there was a similar thread a few months back but I can't
    find it. :mad:
     
    #4 Rokeby, Jul 3, 2009
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