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First Sub Freezing Drive

Discussion in 'Gen 3 Prius Fuel Economy' started by Jonny Zero, Dec 11, 2012.

  1. Jonny Zero

    Jonny Zero Giggidy

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    Car was parked in an attached garage overnight, it got down to 50*F inside. When I left the house, it was 28 outisde, 31 when I got to work. 16.1 mile / 30 min drive to work, no wind. HVAC set to 68*F, butt warmer turned on. Trip computer reported 55MPG, probably 51-52 in reality. Not bad.
     
  2. spiderman

    spiderman wretched

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    Yawn... finally warmed up to your low temps here. Been -15F for the last couple of weeks. Last tank was 39.8 mpg. :(
     
  3. retired4999

    retired4999 Prius driver since 2005

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    Fairbanks! 39.8 mpg, actually is pretty good. (y)
     
  4. Jonny Zero

    Jonny Zero Giggidy

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    When it gets below freezing here, everyone freaks out.
     
  5. spiderman

    spiderman wretched

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    Anchorage actually. Fairbanks was in the -30 -40s! I don't think I would own a prius up there. :)
     
  6. spiderman

    spiderman wretched

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    I can imagine.
     
  7. retired4999

    retired4999 Prius driver since 2005

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    I actually thought maybe Fairbanks was colder, but I didn't check before I posted, should have known! I've been to Alaska four times. relatives in Homer, So I have been to Anchorage. (y)
     
    spiderman likes this.
  8. Jonny Zero

    Jonny Zero Giggidy

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    With global warming, in 30 years, it will be like florida there.
     
  9. walter Lee

    walter Lee Hypermiling Padawan

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    With global warming, a good portion of Florida will be underwater.
     
  10. spiderman

    spiderman wretched

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    Yeah! Get back the Paleozoic period when Alaska was tropical.
     
  11. Jonny Zero

    Jonny Zero Giggidy

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    Texas will probably be the desert. Last year's record drought was just a preview. I should buy a few hundred acres in Alaska for retirement. ;)
     
  12. pichner

    pichner Metallic Maniac #001

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    Minneapolis 12 degrees this morning 14 mile drive to work... 32mpg 2012 Prius 3 with 300 miles on the odo. I managed 61 on the way home a couple weeks ago. So far not impressed with winter mileage.
     
  13. spiderman

    spiderman wretched

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    You will get over it... I did. Just have to look at the overall economy. I am around 47-48 for about three and a half years. If I had gotten the Camry (about the same price) I would have been about 24-25 (guess).
     
  14. San-Francisco

    San-Francisco Junior Member

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    Grill blocking is the answer!
    My car is an Auris Hybrid, a car that` s not available in the USA but in Europe only.
    It is the size of a Corolla and it has the same engine as the Prius III, therefore It can be compared with the Prius III.
    My first winter was an unpleasant surprise when fuel economy dropped, due to cold weather conditions.
    That was late 2010 & early 2011.
    Via the Dutch Toyota Prius Forum and Prius Chat I found out about grill blocking.
    I use it now from early October until late April, and my mileage is about 50 to the gallon, sometimes even better!
    So do read elsewhere on Prius Chat, and do benefit!
     
  15. Jonny Zero

    Jonny Zero Giggidy

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    Day 2 of the same weather and driving condition, 54MPG indicated. Only differences are: 1) garage was at 47 *F when I started out; 2) lowered the HVAC from 68*F to 65*F.
     
  16. john1701a

    john1701a Prius Guru

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    Ha! Give it a chance to break in. I live in the Twin Cities too. Here's my data with the Definitive (2010) model:

    [​IMG]

    [​IMG]

    [​IMG]
     
  17. Jonny Zero

    Jonny Zero Giggidy

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    The car definitely needs to be broken in.

    When my car was new, I had to try to hit 50 indicated, in the summer.
    Now it has 8,000 miles on it, I can hit 55 without trying and 60 + with effort.

    Rolling on them 17s too...
     
  18. Codyroo

    Codyroo Senior Member

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    1) Check your tire inflation and pump it up to 40 psi or higher.

    2) Consider grill blocking, with temps that low, you should be able to block the entire lower grill with no issues. Use standard pipe foam insulation. Some people twist tie it into place. I insert via the pre-slit and then cut a few horizontal slits for the grill's vertical crossbars (you'll know what I'm talking about when you try to put the insulation inplace).

    Winter mileage is lower. There is a sticky at the top of this forum to help you better understand why and to assist you in managing your expectations.
     
  19. jsfabb

    jsfabb Active Member

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    Have you ever done this much micro-mpging with any other car you have owned? Especially in the winter months! I guarantee if you had, you would see that it's pretty good for the conditions. ;)
     
  20. usbseawolf2000

    usbseawolf2000 HSD PhD

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    Thanks, Jonny Sub Zero. :)

    How about the trip back home?