January 2007 MPG Averages

Discussion in 'Gen 2 Prius Fuel Economy' started by Tideland Prius, Jan 6, 2007.

  1. Tideland Prius

    Tideland Prius Moderator of the North
    Staff Member

    Joined:
    Oct 2, 2004
    40,350
    11,879
    41
    Location:
    Canada
    Vehicle:
    2018 Prius Prime
    Model:
    Technology
    23rd Dec - 2nd Jan

    Tank Miles: 556.3km
    Total Miles: 40663.4km

    MFD Avg: 4.8L/100km
    Calc'd Avg: 5.34L/100km

    Fuel Added: 29.700 litres
    Cost: $30.12
     
  2. gs1561

    gs1561 New Member

    Joined:
    Dec 18, 2006
    11
    0
    0
    Second tank. I'm lovin' this car. :)

    28rd Dec - 9th Jan

    Tank Miles: 436
    Total Miles: 828

    MFD Avg: 51.7 MPG
    Calc'd Avg: 52.0

    Fuel Added: 8.39 gal.
    Cost: $18.70
     
  3. Tideland Prius

    Tideland Prius Moderator of the North
    Staff Member

    Joined:
    Oct 2, 2004
    40,350
    11,879
    41
    Location:
    Canada
    Vehicle:
    2018 Prius Prime
    Model:
    Technology
    2nd Jan - 15th Jan

    Tank Miles: 568.8km
    Total Miles: 41232.2km

    MFD Avg: 5.0L/100km
    Calc'd Avg: 4.89L/100km

    Fuel Added: 27.804 litres
    Cost: $27.36

    Avg Temps: -5°C
     
  4. jul-b'ar

    jul-b'ar New Member

    Joined:
    Jan 13, 2007
    3
    0
    0
    January 12, 2007

    Trip Miles: 365 miles
    Total Miles: 607 miles

    MFD Avg: MPG Uh.... what's MFD? I figure 40.57 MPG (365 / 8.996) :blink:
    Calc'd Avg: Uh... how's this different? Rounded? 41 MPG? :unsure:

    Fuel Added: 8.996 gal.
    Cost: $24.20 ($2.69/gal - E10 - 1st tank of this... we'll see how the mileage bears out)

    QUESTION: Since the gas bladder doesn't hold a fixed amount of gas, how reliable is the fuel economy computation? Do you go by the total number of trip miles for that tank & divide that by the amount of gallons you put in when it was empty? :unsure:


    Thanks for the support for those of us who are occassionally mathematically challenged,
    Jul-b'ar
     
  5. TonyPSchaefer

    TonyPSchaefer Your Friendly Moderator
    Staff Member

    Joined:
    May 11, 2004
    14,810
    2,463
    65
    Location:
    Far-North Chicagoland
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
    The MFD provides the accurate computation of MPG. Hand-calculated computations can not be accurately performed. Sad, but true.

    My report:
    Got gas a few days ago.

    Date:
    Jan 11, 2007
    Tank MPG Average: 54.5
    Tank Average Temp: 37.8ºF
    Improvement over last tank: 0.6MPG
    Gas Consumed: 9.610 gal.
    Tank Miles Driven: 459.4

    Lifetime Average: 50.5
    Lifetime Gas Consumed: 547.88
    Total Miles: 27,647

    This new tank started off most horribly. This morning I had to run the engine to defrost the windshield. After about 85 miles, my current tank MPG is around 45.3. I really want to get it up to 50.0MPG or better. Historically, December and January provide my worse tanks; hopefully if I can make it through this month it's straight up from here.

    Click the link in my signature for all the details.
     
  6. troe

    troe New Member

    Joined:
    May 11, 2006
    83
    0
    0
    Jan. 5th thru Jan 12th
    Tank MPG = 58.5 calculated, 59.8 MFG
    miles driven = 577.4
    fuel added = 9.874 gallons
    tank average temperature = 60 F
    driving conditions = 60% hiway at 55 - 70 MPH, 40 city at 35-45 MPH.
    Hiway this tank was totally without cruise, saw 5 MPG improvement by not using cruise. :D
     
  7. barbaram

    barbaram Active Member

    Joined:
    Jan 24, 2006
    911
    62
    9
    Location:
    Trenton, NJ
    Vehicle:
    2010 Prius
    Model:
    IV
    It's been very mild here for the most part. av. temp according to PSE&G =46

    SO FAR:
    MILES 1138.4
    GAL 24.405
    MPG 46.6462

    Still smiling!
     
  8. Beryl Octet

    Beryl Octet New Member

    Joined:
    Aug 27, 2006
    1,293
    0
    0
    Location:
    Abingdon VA
    Vehicle:
    2005 Prius
    I haven't bought gas all year, I'm seeing 53.4 on the display for this tankful, 72 degree days help.
     
  9. daveleeprius

    daveleeprius Heh heh heh you think so?

    Joined:
    Oct 30, 2006
    429
    2
    0
    Location:
    Seattle
    Vehicle:
    2007 Prius
    East of Seattle it's been in the 20s and 30s lately. I filled up recently with two pips left on the gas gauge, and could only get 6 gallons in. It was snowing outside at the time. My lifetime milage is 42.4mpg on the MFD for around 1750 miles of driving since mid October. 25 miles into the new tank, the first pip went out. Looking forward to summertime when I can get more gas into the tank.

    Dave
     
  10. Fibb222

    Fibb222 New Member

    Joined:
    Apr 25, 2006
    1,499
    98
    0
    Location:
    Canada
    Vehicle:
    2004 Prius
    <div class='quotetop'>QUOTE(Tideland Prius @ Jan 6 2007, 10:12 AM) [snapback]371788[/snapback]</div>

    Darn! I can't compete with you Tideland. Please tell me you drive at least 20 minutes each time you get in the car and spend most of your time on the freeway. My trips are usually about 12 minutes and almost never on a freeway. If it is on a freeway it is usually up the steep malahat highway! Doh!
     
  11. Tideland Prius

    Tideland Prius Moderator of the North
    Staff Member

    Joined:
    Oct 2, 2004
    40,350
    11,879
    41
    Location:
    Canada
    Vehicle:
    2018 Prius Prime
    Model:
    Technology
    <div class='quotetop'>QUOTE(Fibb222 @ Jan 16 2007, 01:03 PM) [snapback]376430[/snapback]</div>
    My commute technically is 13-15 mins but with traffic, it goes up to 20 even 30 mins. It's 14km long with a 4km highway at 80km/h (although the highway route to school, it's uphill). I get my best mileage on the way home since it's downhill on the highway and the rolling hills help too. Lastly, my engine rarely gets up to normal temperature by the time I reach school. It usually warms up on the way home after the highway sprint.

    I also blocked my grille and when I refuelled yesterday, I got 3.7L/100km on a round trip to school and back (26km)
     
  12. Tideland Prius

    Tideland Prius Moderator of the North
    Staff Member

    Joined:
    Oct 2, 2004
    40,350
    11,879
    41
    Location:
    Canada
    Vehicle:
    2018 Prius Prime
    Model:
    Technology
    Well, it's the terrain that's boosting my numbers.

    A little bit of both. Sometimes I have a little fun and punch it a bit more. Otherwise, I'm more or less on par or slightly slower. On a flat(ish) surface, I tend to keep it under 16L/100km for acceleration and have no arrows to/from the battery.
     
  13. Fibb222

    Fibb222 New Member

    Joined:
    Apr 25, 2006
    1,499
    98
    0
    Location:
    Canada
    Vehicle:
    2004 Prius
    <div class='quotetop'>QUOTE(Tideland Prius @ Jan 16 2007, 02:42 PM) [snapback]376491[/snapback]</div>

    Wow, so despite your commutes challenges you still get really good numbers.

    How quickly do you generally accelerate from a stop relative to the cars beside and behind you? I tend to leave other cars behind - based on the idea that the engine is more efficient at higher rpms- unless of course that I can see that I'm going to have to decelerate again right away.

    Right now I'm trying to get under 6.0 L/100km (with no freeway driving and many a short trip) on this tankful.

    Thanks
     
  14. subarutoo

    subarutoo New Member

    Joined:
    Jan 18, 2006
    1,213
    21
    0
    Location:
    Chatsworth, CA
    Vehicle:
    2006 Prius
    48.6, here in frigid LA.
     
  15. LanceinOregon

    LanceinOregon New Member

    Joined:
    Jan 20, 2007
    31
    0
    0
    <div class='quotetop'>QUOTE(Mr Frodo @ Jan 9 2007, 06:47 PM) [snapback]373420[/snapback]</div>
    Is it real cold where you are? I am still on my first tank of my new 2007 Prius, but I am consistently getting only 29 MPG Daytime highs have been in the 30's here lately. Only the last two days has it got into the 40's It even snowed two days, and temps did not get above freezing.

    Now I generally do take short trips of 10 min or so. Maybe 20 min is a long trip for me. And it has been very cold here this past week. But still, how are you getting so much better mileage??

    I have been keeping a close eye on the Energy and Consumption screens, and I see that my Prius only runs on battery power when I first start it up, or when I start moving after a traffic stop. And that is only for a couple of seconds. The rest of the time, I am running on gas motor only.

    Now the Energy screen shows the system trying to recharge my battery. Yet, it does not show much in the way of watts being regenerated. So the battery never gets fully charged. It varys from showing a 2/3 to 3/4 charge in the battery.

    What is wrong? Did I get a lemon? Or is it just a factor of it being cold, and my taking such short trips?

    I saw someone from Alaska post better mileage than what I cam getting, though. :(

    Lance
     
  16. Tideland Prius

    Tideland Prius Moderator of the North
    Staff Member

    Joined:
    Oct 2, 2004
    40,350
    11,879
    41
    Location:
    Canada
    Vehicle:
    2018 Prius Prime
    Model:
    Technology
    19th Jan - 27th Jan

    Tank Miles: 389.0km
    Total Miles: 41891km

    MFD Avg: 4.9L/100km
    Calc'd Avg: 5.36L/100km

    Fuel Added: 20.858 litres
    Cost: $18.23
     
  17. kDB

    kDB New Member

    Joined:
    Jun 22, 2005
    241
    0
    0
    Location:
    Fenton, MO
    Fill Date: 01/05/07
    Total Miles: 21820
    Tank Miles: 484
    MFD MPG: 55.9
    Avg. Temp: 41.7°F
    Avg. Trip: 30 minutes (16 miles)

    Fill Date: 01/17/07
    Total Miles: 22146
    Tank Miles: 326
    MFD MPG: 52.7
    Avg. Temp: 38.3°F
    Avg. Trip: 30 minutes (16 miles)

    Fill Date: 01/29/07
    Total Miles: 22557
    Tank Miles: 411
    MFD MPG: 52.0
    Avg. Temp: 31.0°F
    Avg. Trip: 30 minutes (16 miles)

    10 minute trips will do that. Especially if you let the car warm up a bit before you drive it. If you're really concerned about it, next time you fill up your tank, take a 30 minute drive. Remember to reset your MFD MPG. You should then see it do better.
     
  18. geeky teacher

    geeky teacher New Member

    Joined:
    Jan 18, 2007
    393
    7
    0
    Location:
    West Suburban Chicago
    Vehicle:
    2007 Prius
    I'm sorry to hear that I won't be able to calculate my mileage the old fashioned way. I keep hitting the reset button on the MFD when I wipe fingerprints off the display screen. <_<

    I feel compelled to keep the car spotless until the first nick in the paint or one of my grubby kids christens her with something other than a bottle of champaigne. After all, she's only a two week old baby today. Like a proud momma I love those days when the temps rise above 30F and I entertain/annoy colleagues by announcing my baby's latest trick, "She got 52 mpg today!" :D
     
  19. hill

    hill High Fiber Member

    Joined:
    Jun 23, 2005
    15,995
    5,891
    54
    Location:
    South OC So Cal & Nashville, TN
    Vehicle:
    2004 Prius
    Model:
    IV
    <div class='quotetop'>QUOTE(jul-b'ar @ Jan 15 2007, 09:42 PM) [snapback]376125[/snapback]</div>
    Multi Function Display.
     
  20. Tideland Prius

    Tideland Prius Moderator of the North
    Staff Member

    Joined:
    Oct 2, 2004
    40,350
    11,879
    41
    Location:
    Canada
    Vehicle:
    2018 Prius Prime
    Model:
    Technology
    27th Jan - 1st Feb

    Tank Miles: 278.3km
    Total Miles: 42169.3km

    MFD Avg: 4.9L/100km
    Calc'd Avg: 5.03L/100km

    Fuel Added: 13.996 litres
    Cost: $12.09

    This refuel was rather funny. I went in, refuelled and drove off before the Civic next to me was done and the minivan driver (who came in the same time as I did) even started! (He was waiting for the next available pump)

    The minivan driver was just staring as I exited the station.
     
Loading...