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600 miles between fill-ups...

Discussion in 'Gen 2 Prius Fuel Economy' started by bshef, Apr 20, 2007.

  1. charliem

    charliem New Member

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    I average 55mpg without using severe hypermiling methods.At 55mpg i get approx,649 mptank rated at 11.8 gals. It dosn't matter wether i put in 5 or 8 gals at a time ,the results are the same.

    55mpg x 11.8 =649 miles per tank.
     
  2. F8L

    F8L Protecting Habitat & AG Lands

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    <div class='quotetop'>QUOTE(charliem @ Apr 28 2007, 09:07 AM) [snapback]431680[/snapback]</div>

    Nice! :)

    You are an exception to the rule though... My yard has bigger hills than your entire state has. lol
     
  3. dmckinstry

    dmckinstry New Member

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    <div class='quotetop'>QUOTE(F8L @ Apr 28 2007, 05:51 PM) [snapback]431915[/snapback]</div>
    Well this fillup for me was 503 miles on 9.502 gallons. If I actually has 2.3 gallons left I could have gone 600 plus on a tank too. But I don't trust it to actually have that much gas left. My MFD said 56.0 mpg, but the calculated was only 52.92 mpg. This is the best I've ever done over this many miles. The trick for me this time was my wife has been gone the last 2 1/2 weeks, so there haven't been any really short trips I made. I don't know about your yard, but I understand the highest point in Florida is about 300 ft elevation. Most of my driving is between about 2000 ft and 2500 ft elevation. I suspect you're exaggerating just a wee bit about hills in your yard being more than 300 ft.

    BTW, this morning I filled up for $3.099/gal and this evening I saw the prices at $3.179 for the least expensive gas in town.

    Dave M.
     
  4. F8L

    F8L Protecting Habitat & AG Lands

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    <div class='quotetop'>QUOTE(dmckinstry @ Apr 28 2007, 09:53 PM) [snapback]431992[/snapback]</div>
    Justa a bit. ;)

    The point is people come in bragging about getting 50+ MPG like everyone is supposed to get that and the new people end up frustrated because they cannot. I don't know of any Prii owners in my area that get over 50mpg. Most get 45-48mpg. I'm just trying to be realistic. I run into this stuff in racing all the time too. SOmeone talking about how their stock Vette ran xx.xx in the 1/4mile and acting like everyone should run that time. The problem is there are MANY variables involved with best ET just as there is with best MPG. My normal driving will only allow me a max of about 48mpg unless I start drafting semis or cruising below speed limits which is unsafe in this area. In other areas of the state where I salmon fish I can get 54mpg avg. due to reduces speed limits and very flat terrain. Gas formula will also have an effect.

    Again, I'm "keepin' it real". I'm not saying you guys don't get the MPG you say you do.
     
  5. bshef

    bshef Active Member

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    <div class='quotetop'>QUOTE(charliem @ Apr 28 2007, 09:07 AM) [snapback]431680[/snapback]</div>
    Think it was my mom who told me.....
    .....eat all my veggies..
    .....don't run with scissors...
    ....and don't believe everything you read on the internet!
     
  6. kdk84

    kdk84 New Member

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    Maybe this has already been addressed and maybe this is a very newbie question but i don't know much about cars.

    I was wondering what functional purpose the bladder serves and why it is there, since it seems to decrease tank size.
     
  7. Tideland Prius

    Tideland Prius Moderator of the North
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    <div class='quotetop'>QUOTE(kdk84 @ Apr 28 2007, 11:33 PM) [snapback]432031[/snapback]</div>
    The bladder serves to reduce evaporative emissions. This is the emissions via gasoline vapour. The bladder shrinks as fuel is used to prevent the liquid fuel from evaporating and becoming vapour (in a normal solid fuel tank, there is vapour pressure and as fuel is used up, more fuel is evaporated until the rate of evaporation = rate of condensation and thus reach an eqn vapour pressure).

    Another bonus is you burn all the fuel you bought (Well almost since we never really get down to empty) instead of having some of it disappear into the atmosphere when you open the fuel filler cap.
     
  8. MegansPrius

    MegansPrius GoogleMeister, AKA bongokitty

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    <div class='quotetop'>QUOTE(charliem @ Apr 28 2007, 10:07 AM) [snapback]431680[/snapback]</div>
    Almost none of us ever manage to put in 11.8 gallons when we refill the tank. Our average is 9 gallons. But I do think your post probably represents how the radio ad copywriter came up with the 600 miles a tank figure; i.e., someone who hadn't driven a prius looked up the average combined Prius mileage (unrevised--55 mpg) on the internet and multiplied it by the tank size.
     
  9. pviebey

    pviebey New Member

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    My 06 got 500 right before it ran out of gas out in the country...when I was late for dinner with my wife...

    I think it's the marketing guys (# gallons of fuel x EPA mileage).

    Like always, I try not to confuse marketing with reality...
     
  10. dmckinstry

    dmckinstry New Member

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    <div class='quotetop'>QUOTE(F8L @ Apr 28 2007, 09:20 PM) [snapback]432005[/snapback]</div>
    And as I said, that's the best mileage I have ever gotten. I cheated a bit to do that even. Going into Spokane and back, I've been taking the side roads rather than the freeway. That keeps my speed below 50 mph, which helps a lot.

    Dave M.
     
  11. F8L

    F8L Protecting Habitat & AG Lands

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    <div class='quotetop'>QUOTE(dmckinstry @ Apr 29 2007, 09:25 PM) [snapback]432374[/snapback]</div>
    Ohh yeah! I can believe that. I drove through town and around the marshes today which consists of a 2-lane road with 35mpg speed limits and barely any traffic so I could drive any way I wanted. Over a 31mile drive I was at 55mpg avg. :) Once back in town traffic had picked up and I dropped to 54mpg. If one doesn't have to drive on the freeway with the other maniacs that want to do 30mph over the speed limits, you can get decent milage. :)
     
  12. 9G-man

    9G-man Senior Member

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    I did it off my first tank! Just purchased last week.

    [​IMG]

    [​IMG]
     
  13. F8L

    F8L Protecting Habitat & AG Lands

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    <div class='quotetop'>QUOTE(9G-man @ May 10 2007, 01:49 PM) [snapback]439455[/snapback]</div>

    That is awesome!!!

    I wish i could put that much in my tank though. lol
     
  14. Ray Moore

    Ray Moore Active Member

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    Hey Ya'll-
    This is so totally doable. Believe it or not. In the old days I used to post pictures, but that takes too much time.

    I have 71,800 miles on my 2004. I have gotten very few tanks of less than 600 miles. I have gotten a dozen at over 700 miles and I have gotten on of 818 miles. I have a 30 mile commute in the hillcountry into Austin. I drive with the average traffic. There are many tricks that I learned on this site early on.

    I top off with an extra gallon or so at each fillup and I've never had a problem as a result. I fillup when I have calculated to have used 11.5 gallons or so, but sometimes 12. I have put 12.7 gallons in the tank. I have gone as many as 231 miles before the first pip disappeared. 224 miles on this tank before the first pip disappeared. I am currently at 60.5 miles per gallon at around 320 miles. This is the best time of year for mileage for me. My best was 65.1 mpg on the 818 mile tank.

    There are a dozen Prius owned by friends that were purchased after riding in my car. They all start out at 45 mpg and after I show them some tricks they all get over 50 mpg, even my lead foot wife. I just heard from one that has a short commute through the hills and he just registered a 54 mpg tank. The worst thing for mileage is speeds over 60 mph. If I drive 80 mph on the interstate I will get 40 MPG. If I drive 40 on the back roads, I will get 80 MPG.

    If your experience is that it's not possible to get these results in your car and you live in the Austin area, I will get 60 mpg in your car if you will buy me lunch. I've gotten quite a few lunches that way. It is easy to adjust your driving to what works best with the HSD.
     
  15. brad34695

    brad34695 New Member

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    Jim,

    I was reading old threads and I came across this post you wrote back in April. It made me laugh!!! Thanks, and I apperciate your sense of humor!

    Brad
    Tampa Bay

    PS. I drive similar to you here in flat land Tampa and I'm getting about 525 miles per tank on average.
    <div class='quotetop'>QUOTE(JimN @ Apr 24 2007, 09:01 PM) [snapback]429459[/snapback]</div>
     
  16. diamondlarry

    diamondlarry EPA MPG #'s killer

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    I filled up on 6/7/07 after 669.8 miles and was only able to stuff 9.321 gallons in for 71.8 mpg. The temp was ~90F. I drove mostly on country roads, some city, and no highway.
     
  17. pkittie

    pkittie Junior Member

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    Some idiot dealer was touting, "80 MILES PER GALLON!" for the Prius on the radio about 2 weeks ago.

    I average about 48/mpg (I live in L.A.). But when I'm tired, I average about 3-4 miles higher.
     
  18. VABeachPrius

    VABeachPrius Member

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    I seem to be able to pump 11.2-11.8 gallons per fill up. At 9950 miles, a cold winter (my first), a lot of reading, and I have 5, 800+ mile tanks and I am working on my first 1000 mile tank. I am currently at 745 miles at 85.9 mpg displayed.
     
  19. JimN

    JimN Let the games begin!

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    <div class='quotetop'>QUOTE(brad34695 @ Jun 9 2007, 08:18 AM) [snapback]458607[/snapback]</div>
    Brad,

    I appreciate the reply. Yesterday I participated in the Tour to the Shore. The results are interesting. I'm presuming a complete listing will be provided and will post when it's received. There is some variance among the cars, terrain has an effect, but I'm sure the biggest factor can be found behind the steering wheel.

    The only time I am really concerned about tank size is on a long trip in unfamiliar territory.
     
  20. singingtiger

    singingtiger New Member

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    Reply to thread starter, bshef who said:

    :I've religiously written down all numbers I get at every fill-up since tank #1 and have never seen 600 miles.
    Lately, (last 4 tankfulls), I'm avg 52 mpg.
    I'm pretty well-versed in the techniques used to maximize economy but Puh-leeeeeez......600 miles a tank."

    So here is still another reply from driver of over 600 mile tank>

    Filled today 9.48 gallons, 68.14 MPG actual calculated at 646 miles.