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switch from Prius to Jetta, been done?

Discussion in 'Gen 2 Prius Main Forum' started by Bob Allen, Mar 21, 2006.

  1. Bob Allen

    Bob Allen Captainbaba

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    Since my partner, Lyle (biolyle.com) makes his own fuel and is a Seattle area biodiesel activist, we inevitably get into fun jousting about the relative merits/demerits of one system over the other. The other night at dinner with friends, we were asked about what kind of car to get; the friend was interested in improved mileage.
    Lyle made the pitch about biodiesel not using petroleum which, along with religion, is the leading cause of strife in the world. I made a comparison by saying that Lyle is supporting "alternative fuel" technology and I am supporting "alternative power plant" technology, and that both are valid.
    Our friend is leaning towards the Prius. But, here's my idle thought for the day:
    since I live with a man who makes his own fuel, I could potentially be getting virtually free fuel; but for my time and effort in helping make it, or for what I would pay him per gallon if I didn't make it. I'm not a fan of being outside in the 30 degree garage at night in an oily, messy setup, and I can hardly expect Lyle to make me fuel for nothing, so I would probably be paying about 2 bucks a gallon. To some (especially the bio folks), I am being dumb not to have a diesel car running on bio fuel.
    I've pondered our "two prong" approach ever since I bought HUMU. Since I was enthralled with the Prius when I first saw one in 2000, I never really gave the Jetta serious consideration. At the time, I liked the idea of having both systems in our house.
    When I compare the two, I conclude that biodiesel is "cooler" inasmuch as it frees Lyle from the petrol grid, but the reliability of the Jetta, and VW in general, is pretty awful from what I read on line. The Prius offers exceptional reliability and great mileage, but, alas, burns petroleum. When Lyle runs on biodiesel, his car is probably cleaner than HUMU, but when he is forced to use petrol diesel (even the cleaner stuff), HUMU will be cleaner.
    Do any of you know anyone who has switched from a Prius to a diesel? I am not actually planning to do it, at least not for several years until some of the biodiesel marketing, distribution, quality standards, etc, get sorted out. Perhaps by then, there will be a bio alternative or serious additive that will work in my Prius without major changes.
    I'm putting this out as a reasonable area of discussion and hope not to start some religious war over this. I'm sure many of you get questions like this from environmentally conscious people. There is no "one" solution, so driving a Prius is not some sort of crime because it uses gasoline.

    Bob
     
  2. galaxee

    galaxee mostly benevolent

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    hmmmm.

    this is an interesting quandary.

    i guess my only qualm with VW is their long-term quality ratings, coupled with being harder to work on (at least that's what i hear).

    but, that aside, i think both systems have merit, and are both promoting the move away from our dependence on oil. they're both different angles pointing toward the same goal and i think either way it's a good thing.
     
  3. RonH

    RonH Member

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    My question: How much does his fuel really cost? Including his labor and depreciation for the setup as well as raw materials. How much fussing around does he do?
     
  4. Bob Allen

    Bob Allen Captainbaba

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    Three or four hours a week; hard to tell. For him, it's a passion and I think he discounts the actual time/inconvenience. He also picks up oil from several restaurants and has a continuous struggle keeping his car reasonably clean. I couldn't live with the mess in my car even with plastic sheeting. Over the two years he's been doing it, though, he's streamlined the process and improved his equipment. The "raw material" is free, but his setup cost him about 2k at least by the time he was through with multiple modifications. It's definitely a different mindset and I admire him for doing it.
     
  5. habel

    habel New Member

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    How do you know that it is cleaner? have you done any measurements of:
    CO2
    nox and
    particle emmissions?

    Thanks!
     
  6. DaveinOlyWA

    DaveinOlyWA 3rd Time was Solariffic!!

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    so it sounds like after initial cost, there is little cost other than time right??

    if so, that is an excellent way to go. but can he make enough to support two cars??
     
  7. jamarimutt

    jamarimutt New Member

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    How long will the passion last? He may get tired after a couple of additional years.
     
  8. daronspicher

    daronspicher Active Member

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    I have a friend who bought a diesel automatic Jetta in January. He's getting closer to 30-32mpg with it.

    I got my Prius in February and am just a hair under 50mpg.

    I guess if your fuel is free, you'll run cheaper to get the Jetta.

    For most people who would be buying fuel, I'd say the hole in the earth gets more fuel sucked out to drive the Jetta than it does to drive the Prius.

    If I followed his Jetta around with my prius, my mpg would be much lower than 50.

    If he followed my prius around with his Jetta, his mpg would be much higher than 30.

    But, that Jetta won't ever get up to the Prius mpg, and the prius wouldn't drop all the way to the Jetta level if I followed him around.

    Power wise, size wise the cars are very similar.
     
  9. K5VMI

    K5VMI New Member

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    **********

    I switched from a TDI to a Prius for:

    1) small boost in mpg
    2) delta between gas and diesel
    3) extremely high repair costs for the Jetta (approx $100 per month for the 6 years I owned the car)

    I believe I made the right choice.
     
  10. DaveinOlyWA

    DaveinOlyWA 3rd Time was Solariffic!!

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    $100 a month!~!

    omg... why did it take you 6 years to change??
     
  11. Bob Allen

    Bob Allen Captainbaba

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    I don't have the numbers in front of me, but, as I remember from reading some of Lyle's literature, the diesel running on biodiesel puts out fewer emissions in some categories and slightly higher emissions in others, for about a net equality with the Prius ICE. Overall, the biodiesel particulates are not nearly as hazardous as those produced by petrol diesel. Biggest difference, though, is that biodiesel is CO2 neutral, i.e. it does not introduce new carbon into the atmosphere but rather only releases the carbon dioxide that was present in the source bio crop when it was growing. I think that alone makes biodiesel a remarkable part of the global warming equation/solution.
     
  12. Bob Allen

    Bob Allen Captainbaba

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    What is the "delta" between gas and diesel? Apart from the fact there is something about the Prius that makes me happy that I don't imagine feeling owning a Jetta, I concur that the high repair costs and poor track record are enough to deter me from making the switch. Nice to hear some corroborating testimony, though. Thanks for sharing that.
    Bob
     
  13. RonH

    RonH Member

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    We all have to have our hobbies! Has anybody studied the cost of the raw material if a sizeable number of us were rolling our own. I can see it now: muggings at the McDonald's grease trap.
     
  14. RonH

    RonH Member

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    Sorry for replying to my own post, but another image I had was a big debate between biodiesel advocates and low fat diet enthusiasts: which policy is better for society!
     
  15. Frank Hudon

    Frank Hudon Senior Member

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    Park them side by side outside when it's 30 below and then see who's driving who to work in the morning.


    Answer:
    you will be.
     
  16. hdrygas

    hdrygas New Member

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    One of the problems is the amount of Petrol fuel that is needed to make the bio diesel? I know one day that will not be a huge problem but it is now! It is all very complex and interactive at this point. No one can help but be smeared with the Oil Carbon brush. We need to push ever so slowly beyond this point. Bio diesel is at the base a good idea but it needs a bit of work.
     
  17. EricGo

    EricGo New Member

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    BioDiesel is NOT CO2 neutral. Fossil fuel was used to fertilize, grow, harvest, process, distribute, use, collect, and process (again) into biodiesel. I am not saying the CO2 is equivalent to petroleum, just that is is quite obviously not neutral.

    Emissions of BioDiesel are *much* worse than p-zev. Not awful like regular diesel, just much worse.
     
  18. cwerdna

    cwerdna Senior Member

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    VW reliability is awful as the OP mentioned. Have your friend go look at the April 06 issue of Consumer Reports on the news stands, in particular at the reliability tables for VW and the Jetta.

    Also, if he sees the incorect #s for the amount of hybrid savings, be SURE to point him to the corrected version of the article that's been pointed out here many times (the corrected table is at http://www.consumerreports.org/cro/cars/ne...vs-all-gas.htm).

    Although I don't trust JD Powers much, http://www.jdpower.com/news/releases/press....asp?ID=2005089 also shows that VW has poor reliability.

    As for biodiesel, I don't know if your friend is planning to buy new or used w/warranty. If it's got a warranty, I'd STRONGLY advise him not to run on biodiesel from processed cooking grease unless he wants to kiss the engine and emissions warranty goodbye. It should be fuel that's 5% biodiesel at most (B5). See http://www.vw.com/contactus/faqs.html#5.1.

    Keep in mind that from everything I've read about fractional distillation, a barrel of crude oil produces 2x the amount of gasoline as it does diesel. So, even if a diesel car gets 2x the mpg compared to a gasoline car, it's using the same amount of crude oil. It WILL save him at the pump though.

    http://api-ec.api.org/filelibrary/oilfacts_rgb.pdf and http://experts.about.com/q/2441/1227926.htm are two of many sources that discuss crude oil vs. amount of refined fuel produced.
     
  19. rflagg

    rflagg Member

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    Bob,

    Personally, I suggest going a route that would help both of you - that is, if it's not something already done. One thing that'll greatly reduce the oil consumption is switching to green power for your home (http://www.ci.seattle.wa.us/light/Green/greenPower/greenupR.asp). Lyle can then spend countless hours in the garage guilt free, knowing his energy usage for making his car completely self reliant is also coming from renewable resources, while you can work on making your prius a plug-in. Granted, you'll still need gas in the tank, but certainly much less than now. If the plug-in prius numbers are to be believed, it would take me 2.5 days commuting to use up a gallon, of which I use up in .6 days of commuting now.

    Of course, if you already have done something like this, well, then it just makes all the more sense to me to aim for a plug-in version of your current vehicle and aim to double your mileage. Just my two cents. :)

    -m.
     
  20. EricGo

    EricGo New Member

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    I had to mull this over, until I understood how you arrived at this faulty conclusion. Diesel and petrol are different animals. Imagine a fluid made up of two parts water and one part booze. You cannot say that one pint of booze is the same as two pints of water.