1. Attachments are working again! Check out this thread for more details and to report any other bugs.

My first 59.1 mpg tank!

Discussion in 'Gen 3 Prius Fuel Economy' started by GSW, Oct 22, 2010.

  1. GSW

    GSW PRIUS POWER

    Joined:
    Jul 7, 2009
    537
    74
    0
    Location:
    Jacksonville
    Vehicle:
    2010 Prius
    Model:
    II
    This is 90 percent highway and get ready for the kicker..... in "NORMAL" mode!! Conditions all week have been sunny, low humidity, temps between 50-85 degrees. Roads about 75 percent flat with some rolling hills. Average city/highway speed was between 47-51 mph, however I cruise between 58-67 mph. Here is another kicker.... it beat my old tank record of 58.7 in *ECO* mode. This comes with 24,000 miles on the car.

    PS - Tire pressure is 38 front, 36 rear. 80 miles round trip.
     
    #1 GSW, Oct 22, 2010
  2. Hal W

    Hal W New Member

    Joined:
    Sep 26, 2010
    872
    53
    0
    Location:
    Grand Forks,B.C. Canada
    Vehicle:
    2006 Prius
    Model:
    II
    Great FE. Bet it puts a smile on your face! I was down in Washington state yesterday and notice the price went up to $3.25 per gal.. It is getting up there again. H
     
    #2 Hal W, Oct 22, 2010
  3. SageBrush

    SageBrush Senior Member

    Joined:
    Jun 4, 2008
    11,627
    2,530
    8
    Location:
    Southwest Colorado
    Vehicle:
    2012 Prius v wagon
    Model:
    Two
    59.1 ?!
    Aww man, that sucks. Next time stop eating and hit the magic SIXty.

    j/k. Nice result :)
     
    #3 SageBrush, Oct 22, 2010
  4. TonyPSchaefer

    TonyPSchaefer Your Friendly Moderator
    Staff Member

    Joined:
    May 11, 2004
    14,816
    2,497
    66
    Location:
    Far-North Chicagoland
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
    Well done!!

    :rockon:
     
    #4 TonyPSchaefer, Oct 22, 2010
  5. vday

    vday Member

    Joined:
    Feb 19, 2010
    312
    21
    0
    Location:
    Israel
    Vehicle:
    2010 Prius
    Model:
    N/A
    Great FE
    Is that calculated or the cars calculation?
     
    #5 vday, Oct 22, 2010
  6. dcscm1

    dcscm1 New Member

    Joined:
    Mar 22, 2010
    31
    9
    0
    Location:
    Atlanta
    Vehicle:
    2010 Prius
    Model:
    II
    Great stuff! It's always awesome to hit new FE milestones with the car.

    (Sounds like nice virtual weather there in Tron City. Say hello to Sam if you see him.)
     
    #6 dcscm1, Oct 22, 2010
  7. GSW

    GSW PRIUS POWER

    Joined:
    Jul 7, 2009
    537
    74
    0
    Location:
    Jacksonville
    Vehicle:
    2010 Prius
    Model:
    II

    You got me there...

    Car calculated at 59.1

    I calculated 58.0 at the pump. :( still not bad for *normal* mode. The car usually calculates 1-2.3 mpg on the positive side on average (below 55 mpg) and strangely close within 1 mpg when I get above 55-56+ mpg. Don't know why? :confused: Anyone else noticing this behavior on their car? Too many varibles for me.
     
    #7 GSW, Oct 23, 2010
  8. jburns

    jburns Senior Senior Member

    Joined:
    Oct 13, 2005
    829
    111
    0
    Location:
    Archdale, NC
    Vehicle:
    2010 Prius
    Model:
    III
    Mode does not affect mileage. Your foot does.
     
    #8 jburns, Oct 26, 2010
  9. dzawski

    dzawski New Member

    Joined:
    Oct 15, 2010
    12
    2
    0
    Location:
    Dunedin, Florida
    Vehicle:
    2010 Prius
    Model:
    III
    I just filled up - Prius Gen III said I got 49.7mpg on the tank but I traveled 420 miles on 9 gallons (46.7 mpg). Does this mean I need to recalibrate the tires???
     
    #9 dzawski, Oct 26, 2010
  10. vday

    vday Member

    Joined:
    Feb 19, 2010
    312
    21
    0
    Location:
    Israel
    Vehicle:
    2010 Prius
    Model:
    N/A
    That's about a 6% diff.
    Sounds like about the ave of us all:)
     
    #10 vday, Oct 26, 2010
  11. F8L

    F8L Protecting Habitat & AG Lands

    Joined:
    Aug 14, 2006
    19,011
    4,080
    50
    Location:
    Grass Valley, CA.
    Vehicle:
    Other Non-Hybrid
    Model:
    N/A
    Jeff, the Prius computer vs. hand calculated can vary from time to time. I would suggest tracking your mpg over at least 5+ tanks. I wager the difference between the computer and your hand calculations will be minimal. If the difference is large then you can look into options to correct it. :)
     
    #11 F8L, Oct 26, 2010
  12. GSW

    GSW PRIUS POWER

    Joined:
    Jul 7, 2009
    537
    74
    0
    Location:
    Jacksonville
    Vehicle:
    2010 Prius
    Model:
    II
    Thanks, next time I'll let Air Conditioner mode know..... :rolleyes:
     
    #12 GSW, Oct 26, 2010
  13. jburns

    jburns Senior Senior Member

    Joined:
    Oct 13, 2005
    829
    111
    0
    Location:
    Archdale, NC
    Vehicle:
    2010 Prius
    Model:
    III
    Pretty lame response since the use of the air conditioner wasn't even mentioned in your OP. You were making a big deal over the supposed difference between "normal" and "ECO" driving modes in your attained MPG when you said:

    ---------
    "This is 90 percent highway and get ready for the kicker..... in "NORMAL" mode!!Here is another kicker.... it beat my old tank record of 58.7 in *ECO* mode."
    -------

    So here is another kicker for you. All else being equal you can achieve the exact same MPGs in all three driving modes depending on........(kicker time) your foot.
     
    #13 jburns, Oct 28, 2010
  14. GSW

    GSW PRIUS POWER

    Joined:
    Jul 7, 2009
    537
    74
    0
    Location:
    Jacksonville
    Vehicle:
    2010 Prius
    Model:
    II
    Let me frame this lame response. LOL!!! Generalizing is easy is easy to do, but the fact is most Toyotas come with a/c.
     
    #14 GSW, Oct 28, 2010
    1 person likes this.
  15. jburns

    jburns Senior Senior Member

    Joined:
    Oct 13, 2005
    829
    111
    0
    Location:
    Archdale, NC
    Vehicle:
    2010 Prius
    Model:
    III
    Dude, what is wrong with you? I'll be glad to discuss the effect of using the air conditioner on Prius MPGs. Before I do you need to show me where you referenced that effect in your original post I was responding too. Until you do its nothing more than a straw man thrown in because you couldn't respond to my original point.

    Here is your original post.
     
    #15 jburns, Oct 28, 2010
  16. GSW

    GSW PRIUS POWER

    Joined:
    Jul 7, 2009
    537
    74
    0
    Location:
    Jacksonville
    Vehicle:
    2010 Prius
    Model:
    II
    Dude, discuss it with someone who cares about your posts. I don't. Moderator, feel free to lock this at any time. I still enjoy the awesome mpg of our Prius and look forward to hearing from others on PC as they break new mpg barriers.
     
    #16 GSW, Oct 28, 2010
  17. jburns

    jburns Senior Senior Member

    Joined:
    Oct 13, 2005
    829
    111
    0
    Location:
    Archdale, NC
    Vehicle:
    2010 Prius
    Model:
    III
    :lock1: :lock1::lock1:

    I agree lock it., But here's the kicker. You can choose the POWER lock, the NORMAL lock or the ECO lock. They all get the job done.
     
    #17 jburns, Oct 28, 2010
  18. GSW

    GSW PRIUS POWER

    Joined:
    Jul 7, 2009
    537
    74
    0
    Location:
    Jacksonville
    Vehicle:
    2010 Prius
    Model:
    II
    Jburns, I hold out an olive branch here. I believe what you were saying here is that since each mode is simply a different accelerator mapped mode, that your foot (the drivers efficency) controls the mpg no matter what mode your in. If so, I would agree to a point. However, correct me if I'm wrong, dosen't ECO mode also reduce A/C compressor time? That was the reason I brought up A/C because I believe there was more to ECO than just mapping. Make sense?
     
    #18 GSW, Oct 28, 2010
  19. jburns

    jburns Senior Senior Member

    Joined:
    Oct 13, 2005
    829
    111
    0
    Location:
    Archdale, NC
    Vehicle:
    2010 Prius
    Model:
    III
    I never wanted to get into a fuss in any case so I'll gladly accept the olive branch. Shaken, not stirred.

    Yes, ECO does play around with the AC a bit. However under the conditions you listed, 90% highway and moderate temps, any change would be negligible.

    Peace.
     
    #19 jburns, Oct 30, 2010
(You must log in or sign up to post here.)