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Tank MPG

Discussion in 'Gen 3 Prius Fuel Economy' started by Indyking, Sep 10, 2009.

  1. DrJon

    DrJon New Member

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    Where do you live, what kind of car do you have, options, etc. Update Profile! thanks!
     
  2. a priori

    a priori Canonus Curiosus

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    C'mon. All you have to deal with is cold, snow and hills.

    Try winter driving in northern Illinois! We have cold . . and . . uh . . well, it does snow sometimes. Did I mention that cold thing?

    Winter MPGs are pretty tough to deal with after a summer of fun. I'm still thinking the EBH is the way to go. It made a difference with my 2007.
     
  3. MikeDS

    MikeDS Member

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    Consider me updated!

    Pinetop, AZ! Nice place...I grew up in the Phoenix area and used to vacation up there a lot...
     
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  4. DrJon

    DrJon New Member

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    My wife and I spent 4 years at the U. of Chicago. Glad to be outa that! After that, 5 years in Iowa City, IA. I remember a winter of -35 w/ a windchill of -70 F. Yeah, I'd be gettin the EBH too. Now "Pria" gets an insulated garage for the night! Coldest temps never even reach 40 in there even at 7000 feet! Spoiled car!
     
  5. anne1965

    anne1965 Gotta love the game...

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    As promised, my tank 'mpg'
    1040 km = 646 mi
    3.7 l/100 km = 63.5 mpg
    tanked 40.54 l = 3.90 l/100 km = 60.3 mpg
    avg speed = 58 km/h = 36 mph

    My last commute today was 90 km - 3.5 l/100 km - 64 km/h.
     

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  6. a priori

    a priori Canonus Curiosus

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    Nicely done -- but why not 700 miles? :eek: :D
     
  7. a64pilot

    a64pilot Active Member

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    Mileage was higher when the average speed was higher, but the last couple of hundred miles was in town and short trips which brought both avg speed and mileage down
     

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  8. a priori

    a priori Canonus Curiosus

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    Wow!!!
     
  9. jwads

    jwads New Member

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    What does it mean when it says miles, cons and then avg? I assume miles is the number of miles for the car in that particular trip category, Consumps is the MPG for that trip setting, but what does avg mean? Avg for the trip or the odometer or what?
     
  10. Jim05

    Jim05 Occasional Quasi-Hypermiler

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    Average speed for the tripmeter setting. When you reset the trip, the Avg will reset also.
     
  11. problemchild

    problemchild New Member

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    I bet I could lower your mpg.

    Normal driving (not like a blue haired old lady)
    AC on MAX
    Idling with AC on MAX in parking lots for 20 minutes
    Lots of cold starts during the day
    = 36mpg at best
     
  12. a64pilot

    a64pilot Active Member

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    OK, I did drive like a blue hair, but it's hot down here and I will not drive hot, I keep the AC cool. 75 or less usually. If I want to sweat I'd be on one of my bikes.
    On that note, I'm bad about eating at Sonic and I do leave the car in ready mode with AC on for the entire 20 or 30 min. which kills my average speed for example and doesn't help mileage at all because I always leave with two bars SOC, which kills mileage for several miles until the SOC comes back up.
    First half of the tank was quick, the last half was short in town trips, and 5 or 6 cold starts a day. But there was no freeway driving, that would have brought mileage down surely.
    I think part of it is I just got a "good" one. I test fly new aircraft for a living, three of four a month and all of them are exactly the same, but every now and again one is a "dog" and every now and again one will just blow the doors off of the others. Don't know why, but the difference is amazing.

    Why do you have the Flag upside down in your Avatar?
     
  13. jwads

    jwads New Member

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    So Cons is the MPG for that trip category and Avg is the average speed for that trip category? Do I have that right?
     
  14. MikeDS

    MikeDS Member

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  15. jwads

    jwads New Member

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    Is the Cons MPG an average of the tank or what? How does it get computed?
     
  16. a64pilot

    a64pilot Active Member

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    I think it is computed based on fuel injector pulse width, RPM and vehicle speed. It is a computation of how much fuel the engine should have used, there is no actual flow meter. It is based on when the trip meter is reset, it will continue to update itself until the meter is reset regardless of whether the car is re-fueled or not. I don't reset trip B, I use it as life time consumption meter.
     
  17. jwads

    jwads New Member

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    Ya, thats what ive done as well. I use Trip A for MPG and w/e from individual fillups, and B as the overall trip meter
     
  18. elmo2274

    elmo2274 New Member

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    How do you all do it?!? I'm starting to wonder if I have a similiar type of problem as dark_prius. I'm at 4500 miles and my best tank of gas was my first at 47.7 mpg. most tanks I'm at about 45.

    My tires are correct pressure (just checked before a 500 mile trip). my commute is about 14 miles and about 9 of that i Highway driving on cruise control at 65 I get about 43 mpg. I do get better mileage on the way to the highway but thats because my speed is so low that the car seems to use mainly battery power (I don't have the car in EV). The car is always in eco mode and except for about 5-10 seconds when merging onto the highway I keep the acceleration down so its not in power mode. I also try to glide\slow down whenever possible so I don't have to stop at traffic lights.

    oh, gen 3 IV solar. I generally don't drive with the air on. I do sometimes drive with the windows down and roof open but I have done full tanks open and closed and the windows don't make that much of a difference.
     
  19. DaveinOlyWA

    DaveinOlyWA 3rd Time was Solariffic!!

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  20. FireEngineer

    FireEngineer Active Member

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    Well Indy hows your tank?

    IMG_0002.jpg

    In case my crappy cell phone pic is not readable it's 700.3 miles at 65 MPG and average MPH of 31. Now I'll quit fooling around and go back to getting serious mileage.

    Wayne