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resetting the mpg on the lcd

Discussion in 'Gen 2 Prius Audio and Electronics' started by feethanddooth, Mar 20, 2005.

  1. feethanddooth

    feethanddooth New Member

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    this month ive reset the mpg twice on the lcd but have not had the screen up were the reset button is displayed. i noticed it has happened after i have gotten my tanked filled and i was resetting the odometer gauge. is there a link between the two? how can i avoid doing resetting the lcd mpg in the future if this is the case? thanks :)
     
    #1 feethanddooth, Mar 20, 2005
  2. Tideland Prius

    Tideland Prius Moderator of the North
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    The Consumption screen tracker will always reset after you've fill up at least... 2? gallons or more.
     
    #2 Tideland Prius, Mar 20, 2005
  3. TonyPSchaefer

    TonyPSchaefer Your Friendly Moderator
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    Someone previously said that they notice it resetting predictably about a half-block from the gas station. I had never noticed because I habitually and ceremoniously reset it before I even slip into Park.
     
    #3 TonyPSchaefer, Mar 20, 2005
  4. efusco

    efusco Moderator Emeritus
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    <div class='quotetop'>QUOTE(TonyPSchaefer\";p=\"74063)</div>
    If you do that you can still see it reset...it will do it again once the tank level graph hits full (a few seconds after actually).
     
    #4 efusco, Mar 20, 2005
  5. TonyPSchaefer

    TonyPSchaefer Your Friendly Moderator
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    <div class='quotetop'>QUOTE(TonyPSchaefer\";p=\"74063)</div>
    I'm bad with the typos. What I meant was that I reset before I slip into Drive. Or slip out of Park. But of course, I'm in Park when sitting at the station. I'm sure you knew what I meant, I just thought I'd clarify that.
     
    #5 TonyPSchaefer, Mar 20, 2005
  6. narf

    narf Active Member

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    <div class='quotetop'>QUOTE(efusco\";p=\"74078)</div>
    Actually I've watched this and it seems that it doesn't reset until the car hits around 5 mph.
     
    #6 narf, Mar 20, 2005
  7. Tideland Prius

    Tideland Prius Moderator of the North
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    Tony, I think that might've been me. I'm having better luck now. I do believe it'll wait til the gauge reads full
     
    #7 Tideland Prius, Mar 20, 2005
  8. jeepien

    jeepien Member

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    The MFD Consumption display resets to zero when both of the following conditions are met:

    1. The fuel gauge has stabilized at its new reading (which must be at least one bar higher than its old reading).

    2. The wheels have turned one revolution.
     
    #8 jeepien, Mar 20, 2005
  9. DanMan32

    DanMan32 Senior Member

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    Now THAT makes sense.
     
    #9 DanMan32, Mar 21, 2005
  10. efusco

    efusco Moderator Emeritus
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    <div class='quotetop'>QUOTE(jeepien\";p=\"74201)</div>
    Yup, that sounds right to me....I just want to make one tiny clarification. The wheel revolution must occur after the guage has stabilized.

    IOW, if you drive off from the pump but then stop before the guage stabilizes the consumption screen won't reset until shortly after you start moving again.
     
    #10 efusco, Mar 21, 2005
  11. feethanddooth

    feethanddooth New Member

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    ok. well then how do you keep track of your mpg for the month? i was letting it run but if the case is that it will reset eah time i refill then i cant do it on the lcd. any suggestions?
     
    #11 feethanddooth, Mar 21, 2005
  12. DanMan32

    DanMan32 Senior Member

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    Pad and pen, or PDA & spreadsheet, or laptop & spreadsheet, or pad & pen & desktop & spreadsheet, or memory & desktop & spreadsheet.
     
    #12 DanMan32, Mar 21, 2005
  13. mtc1234

    mtc1234 New Member

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    As a new owner (as of Friday) I want to make sure I get my strategy for tracking mpg straight. So, I understand the reset at the pump; and, I can easily right down the MPG as well as record the odometer and gallons pumped (thus giving me all the wonderful information needed to calculate mpg and confirm the console reading, as discussed in many threads.

    But, I'd also like to track mpg on given stretchs of road (e.g. on my way to work). So, I figure I can do the same thing; but, I haven't fully thought out the math... If I reset, it seems I better note the miles at the time too, so I can have two out of the three variables defined.

    Anyway, if someone else does this sort of thing, does it work out well for you?
     
    #13 mtc1234, Mar 21, 2005
  14. TonyPSchaefer

    TonyPSchaefer Your Friendly Moderator
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    <div class='quotetop'>QUOTE(feethanddooth\";p=\"74279)</div>
    Dan's the man. He exactly right.

    Only I track every fill-up, not on the month. I figure that when the month ends, I will have an uncertain amount of gas (known as Schroedinger's quantity) in the tank for my calcualtions.

    I keep a small pad of paper and a mechanical pencil in the compartment under the stereo. I actually only use the paper for jotting ideas and notes. But with the pencil I record the ODO-A's miles (nnn.n) and the MFD's tank mileage (nn.nMPG). The gas receipt contains the date, gallons and price. That should be enough to track.

    If you do not get a receipt when you get gas, use the little pad of paper to record the gallons, date, and price.

    Many people here have spreadsheets availble you can use as examples for your own. They all have their reasons for capturing the information they do and displaying it in their particular way. In the end, all that's important is that it makes sense to you.

    (You can see mine by clicking on my signature)
     
    #14 TonyPSchaefer, Mar 21, 2005
  15. jrfaris

    jrfaris Member

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    I usually just use the 5 minute bars on the consumption screen to review mileage over a recent stretch of road. They are not ideal but they do give you a general idea. Of course resetting the calculated average will work as well but makes a tank by tank comparison more complicated.

    As for multi tank mileage, I use the fuel logbook at the GasBuddy web site to do that. It calculates tank by tank averages as well as the cumulative average for the year. The site also helps locate good gas prices in many local areas.
     
    #15 jrfaris, Mar 21, 2005
  16. bookrats

    bookrats New Member

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    <div class='quotetop'>QUOTE(TonyPSchaefer\";p=\"74297)</div>
    Dan's the man. He exactly right.
    [/b][/quote]
    Ditto. Only difference from Tony is that I use a spreadsheet on my PDA.

    I'm more interested in the information long-term -- i.e., what's my mileage like, overall, in each year of the car's life, or between seasons.
     
    #16 bookrats, Mar 21, 2005
  17. TonyPSchaefer

    TonyPSchaefer Your Friendly Moderator
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    <div class='quotetop'>QUOTE(bookrats\";p=\"74340)</div>
    And I got that covered too, Jeff. I sync files on my Dell Axim and keep all my mileage files on my PDA. I do this because I sync at work and at home. It's easier to transfer files that way and avoid versioning. The only thing I don't like is that sometimes making changes on the Axim messes up my charts.
     
    #17 TonyPSchaefer, Mar 21, 2005
  18. feethanddooth

    feethanddooth New Member

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    i think you guys are all insane.



    but i like it. :)
     
    #18 feethanddooth, Mar 22, 2005
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