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The Inconvenient Truth About Ethanol

921 messages,  Last post on Oct 07, 2009 at 10:53 AM

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What is this discussion about? Alternative Fuels


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#789 of 921
Re: Conversion kit from Brazil any better? [galonga] by jkinzel
Jun 07, 2009 (11:45 am)
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Replying to: galonga (Jun 07, 2009 11:21 am)

I’m not sure you’re going to get much positive information about ethanol on this thread; ethanol has a lot of negatives and very few positives.
 
If you really want to cut down on fuel consumption, buy a diesel. A VW Jetta TDI gets about 45 to 50 MPG. Do your home work, but I don’t think ethanol is the way to go.
#790 of 921
Re: Conversion kit from Brazil any better? [jkinzel] by galonga
Jun 07, 2009 (12:21 pm)
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Replying to: jkinzel (Jun 07, 2009 11:45 am)

Tell me then why do you think ethanol is not the way to go?
 
I mean, if a WHOLE COUNTRY has been running it for over 3 decades with no problem as I´ve read, doesn´t that prove it works?
#792 of 921
Re: Conversion kit from Brazil any better? [galonga] by texases
Jun 07, 2009 (1:10 pm)
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Replying to: galonga (Jun 07, 2009 12:21 pm)

Ethanol from sugar cane is much more efficient than our ethanol from corn. This, of course, ignores the 'minor' issue of clearing rainforests to plant sugar cane. Of course it works, a correctly set-up car can use it. Are you wanting to use E100? Not available here.
#793 of 921
Re: Conversion kit from Brazil any better? [texases] by galonga
Jun 07, 2009 (1:27 pm)
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Replying to: texases (Jun 07, 2009 1:10 pm)

" This, of course, ignores the 'minor' issue of clearing rainforests to plant sugar cane"
 
I´ve read these days a recent article on The Economist that debunks that.
 
But thanks anyways.
#794 of 921
Re: Conversion kit from Brazil any better? [galonga] by texases
Jun 07, 2009 (1:38 pm)
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Replying to: galonga (Jun 07, 2009 1:27 pm)

"I´ve read these days a recent article on The Economist that debunks that."
 
Do you have a link? I couldn't find that on their web site.
#795 of 921
Re: Conversion kit from Brazil any better? [texases] by galonga
Jun 07, 2009 (2:00 pm)
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Replying to: texases (Jun 07, 2009 1:38 pm)

I tried to find it on my bookmarks but I #$#$ lost it!
 
But believe me I´m not making this stuff up: it was an excellent article.
 
Either way, there are a lot of recent GOOD studies that prove that theory is old: you won´t have trouble finding them.
#796 of 921
Re: Conversion kit from Brazil any better? [galonga] by gagrice
Jun 07, 2009 (5:14 pm)
Reply

Replying to: galonga (Jun 07, 2009 2:00 pm)

Brazil has NOT used ONLY ethanol for 30 years. They gave up production when sugar prices went up and oil prices dropped. They left 1000s of vehicle owners in the lurch with cars that would only run on ethanol. A lot of the vehicles sold in Brazil now will run on anything from unleaded gas to 100% ethanol. It is also somewhat misleading that Brazil is energy independent using ethanol. They get about 20% from ethanol and the rest from new oil discoveries in Brazil. Lastly sugar ethanol is so much cheaper than corn ethanol that will still buy millions of barrels from Brazil with the 53 cent tariff for less than it costs US to produce with corn.
 
Corn ethanol is a boondoggle to appease the Midwest. Problem is the only ones making money are the big conglomerate growers and producers. It will fail again just as it did in the 1980s.
 
There are many vehicles for FlexFuel and have been for more than 10 years. Just be ready to refuel a lot more often as the mileage stinks.
 
Brazil uses ethanol for political reasons not environmental. A short history of Brazil and ethanol will give you a bit of perspective.
 
Under the Pro-Alcohol programme, farmers were paid generous subsidies to grow sugar-cane, from which ethanol was produced.
 
The price at the pump was also subsidised to make the new fuel cheaper than petrol, while the motor industry turned out increasing numbers of vehicles adapted to burn pure ethanol.
 
As a result, in 1985 and 1986, more than 75% of all motor vehicles produced in Brazil - and more than 90% of cars - were designed for alcohol consumption.
 
But then it all went wrong.
 
But despite ethanol's green credentials, Brazilian enthusiasm for the fuel reached its lowest ebb in 1997, just as the world was marking five years since Rio de Janeiro hosted the United Nations Earth Summit.
 
That year, just 1,075 motor vehicles built to run on alcohol rolled off the country's production lines - a mere 0.06% of the total output.

 
http://news.bbc.co.uk/2/hi/business/4581955.stm
#797 of 921
Re: Conversion kit from Brazil any better? [galonga] by texases
Jun 07, 2009 (6:41 pm)
Reply

Replying to: galonga (Jun 07, 2009 2:00 pm)

I've looked, and the studies I've found say the opposite, that corn (especially) and cane based ethanol are net negative for the environment.
#798 of 921
Re: Conversion kit from Brazil any better? [galonga] by jkinzel
Jun 07, 2009 (6:58 pm)
Reply

Replying to: galonga (Jun 07, 2009 12:21 pm)

I was gone all day, but looks like your question was answered.
 
Corn mash alcohol is for drinking, if you want good mileage; buy a diesel or a hybrid if your driving is all city.
 
Driving a car with E10 gasoline (10% ethanol) seems to produce a reported 8% to 10% loss in MPG over pure gasoline because ethanol has less energy than gasoline. Diesel contains about 40% more energy than gasoline so you get about 35% to 40% increase in MPG.

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