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Ethanol gas vs non Ethanol gas

Discussion in 'Gen 3 Prius Fuel Economy' started by alfon, Sep 8, 2010.

  1. alfon

    alfon Senior Member

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    When stating your MPG you should also advise in your post if the gasoline you use is cut with Ethanol, usually a 10% blend.

    This will make a difference of at least 2-4 MPG less miles per gallon.

    Here in Oregon, and some other states in the U.S., all gasoline is treated with 10% Ethanol gas all year long.

    Before in Oregon Ethanol was only used in the winter months, but based on the slippery slope rule, we now have to use it yearly.

    So, in order to keep MPG's equal with other drivers I believe this should be added in your post so we are all on the same playing field.

    alfon
     
  2. ItsNotAboutTheMoney

    ItsNotAboutTheMoney EditProfOptInfoCustomUser Title

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    it's easier to assume E10 and say when it's straight gas.
     
  3. jmbrendel

    jmbrendel New Member

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    This guy states that only six States mandate the use of E10, including only one State with a large population (Florida):
    States That Have Mandatory E10 Laws | eHow.com

    We'd like to see E10, and eventually higher blends of ethanol, required here in Michigan too.
     
  4. alfon

    alfon Senior Member

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    If only six states have 10% Ethanol blend all year long it is perhaps safe
    to say that most of the mpg figures are calculated with straight gasoline.

    It is just my opinion, that if we are going to be accurate and equal in our comparisons, stating if you use Ethanol blended gas or straight gas would at least explain why some Prius owners have better mpg than others.

    alfon
     
  5. sub3marathonman

    sub3marathonman Active Member

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    Be careful what you wish for, you just might get it.

    Then see how your lawn mower likes it, your snowblower there in Michigan, any older cars if you have one. Oh, and if you use it in your Prius, you will be dropping at least three or more mpg. Then, once it is there, IF you could get E0 gasoline you'll have to pay 20% more or so, while paying the original pure gasoline price for the E10.
     
  6. alfon

    alfon Senior Member

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    Believe me you DO NOT WANT ETHANOL GAS IN YOUR STATE.

    I wish we had a choice here in Oregon but we do not.

    Ethanol is currently made from corn. It takes more than one gallon of diesel to make one gallon of Ethanol.

    Remember, Ethanol, has less BTU's than regular gas, and about 50% less energy than diesel fuel.

    If you know economics Ethanol is a loooooser. Its government funded so we are all paying for it.

    Here in Oregon we loose both ways.

    Yes, if you get Ethanol, like here in Oregon, you will notice less mpg, 2-4 mpg, than regular gasoline.

    alfon
     
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  7. john1701a

    john1701a Prius Guru

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    It's different in Minnesota, where it's been a mandate for a decade now. It's common to use waste energy sources (like wood scraps & sawdust) for processing and when not available there's natural gas here. Hybrid corn research here has increased yields significantly too. So within the state, it's a different story than many other parts of the country.

    As for MPG, my 50 average is plenty considering the tradeoff for cleaner emissions.
    .
     
    John Albertson likes this.
  8. qbee42

    qbee42 My other car is a boat

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    I thought it was required in Michigan. I haven't seen non-ethanol automotive gasoline for years. There are exemptions for special use. For example, the gas tanks in many boats dissolve into a sticky goo when exposed to alcohol. Obviously that doesn't do much good for marine engines, so you can buy non-ethanol marine fuels, assuming your local marina decides to carry them.

    Tom
     
  9. mmichaell

    mmichaell Member

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    So Ethanol actually might make sense up there? If you have any articles and such about this let me know, it'd be an interesting read for me.
     
  10. qbee42

    qbee42 My other car is a boat

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    It makes sense for corn farmers. Those of us that live in farming states generally have to burn ethanol gasoline. It doesn't make any sense from an economic or reusable fuel viewpoint.

    Tom
     
  11. walterm

    walterm Active Member

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    It may not be a law, but here in NJ I've not found a single station that sells straight gas anymore:mad: - it's all E10. I suspect other states are similar, so I would presume mileage figures were based on E10 unless someone knew they got straight gas. That could also be the reason the displayed MPG is almost always higher than actual - the calculation is based somehow on factors that were set for 100% gas, and the actual mileage from E10 is less (I read that in some other thread a month ago or so).
     
  12. DetPrius

    DetPrius Active Member

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    I looked at a site a month or so ago where you could check on stations by state selling straight gas and in MI, where I am, and there were 3 or 4 and they were all at marinas, as Tom indicated.
     
  13. cproaudio

    cproaudio Speedlock Overrider

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    I dont think CA has E10 mandate. Gas here are usually at nations most expensive price. The cheapest gas here is 2.849/gal at some no name mini mart. name brands like shell and mobile are usually at least 15 cents more.