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

Prius Mileage

Discussion in 'Gen 2 Prius Fuel Economy' started by zoobob, Feb 23, 2005.

  1. zoobob

    zoobob New Member

    Joined:
    Feb 23, 2005
    7
    0
    0
    Location:
    West Texas
    We purchased a 2004 Prius and have been keeping detailed records for eight months. Here is the link to view the data. http://forsan.esc18.net/FishbackBob/Prius/prius.htm The mileage is not as good as advertised, but we are very happy with the car.
     
  2. DaveinOlyWA

    DaveinOlyWA 3rd Time was Solariffic!!

    Joined:
    Apr 13, 2004
    15,140
    611
    0
    Location:
    South Puget Sound, WA
    Vehicle:
    2013 Nissan LEAF
    Model:
    Persona
    great records... interesting that you calculated how much money you saved by driving the Prius verses your old car....

    i thought about doing the same thing but i cant count that high
     
  3. RadGash

    RadGash New Member

    Joined:
    Jan 1, 2005
    25
    0
    0
    Our new 2005, albeit only has about 85 miles now, has been getting an average of 38 mpg IN TOWN and only slightly higher on the freeway (oddly enough about 43mpg). I am no led foot, but I also dont believe in holding up traffic in order to eek out better milage. I go with the flow. I think Toyota GROSSLY MISREPRESENTED the milage stats. Don't get me wrong, I love the car still, but I am somewhat put off by the misleading advertizing. Even the dealer leveled with us that the stats were B.S. Should Toyota be held responsible for this?
     
  4. john1701a

    john1701a Prius Guru

    Joined:
    Jan 6, 2004
    12,767
    5,251
    57
    Location:
    Minnesota
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
    Sorry, but making the assumption that the big numbers on the window sticker represent what you will actually get (under all circumstances) is the problem.

    Read the actual detail... http://john1701a.com/prius/images/Prius_Wi...ndowSticker.jpg

    Notice how that is more realistic. Of course, it still assumes you are using summer-formula gas and the temperature is warm.
     
  5. kidtwist

    kidtwist New Member

    Joined:
    Feb 20, 2005
    183
    1
    0
    Location:
    San Diego, CA
    The carmakers in the US are legally required to only advertise the EPA numbers. Blame the EPA. It should be noted the advertised mileage numbers are also liable to be high for conventional automobiles as well, but, unlike the Prius, those cars typically don't tell the driver what mileage they're getting.
     
  6. Ray Moore

    Ray Moore Active Member

    Joined:
    Mar 28, 2004
    857
    52
    0
    Location:
    Texas Hill Country
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
    I almost always average slightly less or slightly more than the EPA figures without making anyone angry with me. I drive the speed limit. My avatar shows my normal mileage although I am currently at 57.7 MPG for the past 370 miles and climbing. Not bad for February, where our temps have been ranging between 40 and 70 degrees.
     
  7. efusco

    efusco Moderator Emeritus
    Staff Member

    Joined:
    Nov 26, 2003
    19,891
    1,193
    9
    Location:
    Nixa, MO
    Vehicle:
    2004 Prius
    Model:
    N/A
    You've got 85 miles and you're making a statement like that. So those of us seeing the EPA numbers are....what?

    Read My Knowledge Base Article, try to educate yourself about how the EPA ratings are arrived at, consider the percentage difference most people are seeing in the Prius and in other cars and see if you still want to make such a knee-jerk assumption based on zero data.

    If you look at the GreenHybrid.com Mileage Database You'll note that the median for the Prius is 48mpg and the mean is the same. Now, that's all comers, but certainly no 'gross overestimate' by Toyota or anyone else.

    Give your car another 5-6k miles to break in, give yourself an opportunity to learn a little bit about how to maximize the mileage, give the weather a little time to warm up and then come back here and let us know how you're doing and if you still want to make such a statement.
     
  8. RadGash

    RadGash New Member

    Joined:
    Jan 1, 2005
    25
    0
    0
    sorry I offended you. Yeah, the car is new and perhaps I was expecting milage like was advertized... I should break it in (like 500 miles) before I cast a judgement... right? OK... will do.
     
  9. RadGash

    RadGash New Member

    Joined:
    Jan 1, 2005
    25
    0
    0
    Nice article. Thanks for the link.
     
  10. DaveinOlyWA

    DaveinOlyWA 3rd Time was Solariffic!!

    Joined:
    Apr 13, 2004
    15,140
    611
    0
    Location:
    South Puget Sound, WA
    Vehicle:
    2013 Nissan LEAF
    Model:
    Persona
    Toyota wanted to advertise "realistic" mileage but was not allowed to. only official EPA stats can be stated. they actually looked to get an exception because they felt it applicable because of the vast differences in the way true hybrids operate. the EPA didnt feel the need to enlighten the public, so they disagreed.

    obtw... the mileage figures are obtainable as many in this forum can attest
     
  11. zoobob

    zoobob New Member

    Joined:
    Feb 23, 2005
    7
    0
    0
    Location:
    West Texas
    Next week we are driving to Tampa, Florida. That should add another 3,000 miles and lots of data. I plan to keep this page going for at least a year. My friends are very interested in the Prius, but are afraid to take the chance on the new technology. I hope they will feel more secure with this information.

    I do have a couple of suggestions to improve the car. I'm 6'3". If the seat would slide back another couple of inches it would make a tremendous difference for people over 6'. I used to own a VW Passatt. The doors curved in at knee level and that gave you much more leg room. I would also raise the gear shift lever a couple of inches higher. The car is comfortable enough, but these changes would make it very comfortable for Texas size drivers.
     
  12. efusco

    efusco Moderator Emeritus
    Staff Member

    Joined:
    Nov 26, 2003
    19,891
    1,193
    9
    Location:
    Nixa, MO
    Vehicle:
    2004 Prius
    Model:
    N/A
    No worries, sorry to jump down your throat. I (we) have a pretty short fuse on this topic after the multitude of ill informed 'news' articles that are out there reporting poor mileage after a total of 200 mile of hard cold weather driving or something.

    I think you'll be happy soon enough.
     
  13. TonyPSchaefer

    TonyPSchaefer Your Friendly Moderator
    Staff Member

    Joined:
    May 11, 2004
    14,816
    2,498
    66
    Location:
    Far-North Chicagoland
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
    I have to agree with Evan. It is extremely frustrated to read articles written be people who really are lead foots driving brand new vehicles achieving unimpressive mileage. Not only because they just don't get it, but also because they are distributing their (mis)information to potentially millions of readers.

    RedGash, if it helps, try something for me. As you are driving on any stretch of road, see how far you can slowly let up on the accelerator before you actually begin to slow down. And you have to use the speedometer as your guide. I have found that I'm accustomed to the feel of my foot as a determinant for how fast I'm going. The Prius isn't like that. I've experimented and found that I can press on the accelerator and reduce my mileage without actually increasing my speed. Then I let up and increase my mileage without reducing my speed. (man I hope that made sense) Hopefully, this will help you get a feel for the car and increase your mileage. Note: it won't happen overnight.
     
  14. RadGash

    RadGash New Member

    Joined:
    Jan 1, 2005
    25
    0
    0
    I have always been fuel conscious. I am by no stretch of the imagination a lead foot. Actually, my OTHER car is a 95 Honda Civic VX. When the speed limit was 55, I actually drove 55 on the freeway to work (at the time it was about 35 miles each way) for the entire tank and got .... drum roll please.... 51mpg! I still have the car (even though my wife trashed the rear end) because as of this time it still gets the best milage of any car I have ever had. I do have high expectations for our Prius though, and we love this car.
    We moved closer to work and now the commute is a measly 5 miles. I heard that the Prius does not perform at its best until it is thoroughly warmed up, but I am afraid that my average commute now may not give the engine a chance. If nothing else, this car DOES burn CLEANER than ANY CAR I have ever had. I will NEVER buy another 100% gas car again if I have the option.
     
  15. RadGash

    RadGash New Member

    Joined:
    Jan 1, 2005
    25
    0
    0
    Tony, I agree. I have actually already noticed this, but have not put it into play yet. I'll get it a try.
     
  16. zoobob

    zoobob New Member

    Joined:
    Feb 23, 2005
    7
    0
    0
    Location:
    West Texas
    I just posted the data from the Florida trip. We drove 3226 miles at a cost of $141 dollars. Cruise control was set any where from 72 to 77 mph. Worst tank mileage was 38 mpg and best tank was 54 mpg. We did not try to conserve gas. It was a long trip done in four days of driving. We have 27,414 miles on the car now and are still very pleased with the Prius. Data is at the following link. http://forsan.esc18.net/FishbackBob/Prius/prius.htm
     
  17. Opusnugen

    Opusnugen New Member

    Joined:
    Jan 22, 2004
    16
    0
    0
    A quick check of our last 4 gas reciepts showed any where from 47 to 49 mpg average for our Prius, with combined highway and stop-n-go driving. With over 28K on the car, it is definitely broken in and running well. Cruise control is used only when we are traveling on interstates and for long periods of time.

    I have noted (and my kids will back me up on this) that when my wife drives the car, the average mileage goes down, while it tends to go up when I drive the car. I figure it is technique, as I tend to back off the gas pedal in areas where I know I can coast. I have been able to get the average from about 45-46 to over 50 just by modulating the gas pedal (vs. holding it steady). It seems that when we use cruise control, it holds the speed so steady that the display will show a flat line for our 5 minute averages.
     
  18. RadGash

    RadGash New Member

    Joined:
    Jan 1, 2005
    25
    0
    0
    There is definitely a sweet spot on the pedal at any given speed or road condition. I can change the MPG so dramatically while maintaining the same speed, wary in as much as the reliability of this readout may be. Im can make a difference of 20 or 30mpg with a VERY subtle easing of the pedal. This may not be unique to the Prius, but the display right in your face certainly drives home an awareness of driving technique. The Prius, in a way, gives you a cookie for being a good-dog. Already when I drive the OLD Cherokee (now and then) I feel like I am comandeering a bolder down the road.
     
  19. Old n Bold

    Old n Bold New Member

    Joined:
    Mar 10, 2005
    79
    0
    0
    Location:
    Bellingham, WA
    I am still surprised at the number of people who still regard the gas mileage on the window sticker of a new car to be accurate. It is best used only as a relative figure. A car that has a 26 mpg label will usually get better gas mileage that one that has a 21 mpg label.

    I paid most attention to Consumers Reports figures. They rated the Prius at 44 mpg for a mix of city and highway driving. That is closer.

    I have had my 2005 BC Prius for a couple of weeks now and am on the 2nd tank. The first got me 50 mpg on a variety of roads and the second tank looks like about 48 mpg right now.

    My only problem was in getting gas into the tank when I refueled it. I knew I would have to use the slowest detent on the hose but even that didn't work. I had to barely crack the hose and old it. It kept cutting off. At 9 gal. it popped off again and I assumed I had given it too much pressure. I tried again and it puked about a cup of gas. Think I'll try another gas pump next time and will be leary at 8 gal or above.

    Love the car, though.
     
  20. ceric

    ceric New Member

    Joined:
    Oct 30, 2004
    1,114
    53
    0
    Location:
    Fremont, CA
    Vehicle:
    2005 Prius
    Does anyone has detailed explanation as to why Prii have such poor MPG for the first 2 miles (or first 5 minutes)? The difference is quite dramatic compared with a pure ICE vehicle. My daily commute is about 16 miles one way. I have been getting 46mpg. Not complaining. However, the first 2 miles or 5 minutes is always around 30mpg. I do have a BMW with on board computer that gives MPG numbers. It is not as dramatic when it is cold.

    One possible explanation I have is
    - the energy used to quickly heat up CAT to reduce emission

    Anything else? Please educate me.