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Farmall & IHC Tractors Discussion Forum
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ethanol and fuel mileage

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Terry

10-26-2003 08:45:37




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Have you guys got an opinion on which gives you the better mileage, ethanol blend or pure unleaded.

My experience has been about 10% lower mileage with the ethanol. That means when I am hauling a tractor, it goes from 12 mpg to about 10.5 with ethanol.




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Doug in OR

10-27-2003 06:30:15




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 Re: ethanol and fuel mileage in reply to Terry, 10-26-2003 08:45:37  
Ethanol has about 67% as much energy per gallon as gasoline. In theory, you would get about 67% as many MPG if you burned pure ethanol. A 10/90 ethanol/gasoline blend has about 3 to 4 percent less energy per gallon as straight gasoline. EPA tests confirm this same 3 to 4 percent reduction in mileage when this product is used. On the plus side, the ethanol blend has higher octane. You might save money if you use the blend instead of a straight higher octane gasoline - if your engine required higher octane. This depends on the price of the blend, of course.

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Wayne Swenson

10-26-2003 15:56:20




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 Re: ethanol and fuel mileage in reply to Terry, 10-26-2003 08:45:37  
Ethanol doesn't have as many heat units as does straight gasoline so when burned in an engine will now get quite as good mileage or horsepower.
However, think of what it means on the political scene. More ethanol means less imported oil is needed and maybe, just maybe, we woudn't have to keep our military "over there" to protect the sources of crude oil we happily guzzle "over here"!! Do you suppose encouraging our farmers to produce corn for ethanol and soybeans for bio-diesel is a good idea? I certainly think so.
Enough soap box for the moment. "Pure" gasoline doesn't exist because it is made of a blend of 250-300 different chemicals that are manipulated to allow the refiner to achieve the desired grade & octane results needed for that particular production run and keeping the cost factor at a minimum. Ethanol has other benefits such as dewatering your fuel system. For example, I live in Minnesota and have used ethanol for 15-20 years now. I do not use any Heet or such product to keep my systems from freezing. The fuel system is automatically cleaned as I drive.
For my money, I'll continue to use ethanol blended fuesl and gladly help keep our farmers going.

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Ted

10-27-2003 06:42:05




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 Re: Re: ethanol and fuel mileage in reply to Wayne Swenson, 10-26-2003 15:56:20  
Wayne, I read discussions on the tractor pull sites and it seems pullers like ethanol for power,
I believe they blend it with high octane gas. This seems contrary to what you and Terry are talking about. Is it the type of motor or compression that makes a difference?



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Hugh MacKay

10-27-2003 01:19:50




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 Re: Re: ethanol and fuel mileage in reply to Wayne Swenson, 10-26-2003 15:56:20  
Wayne: I believe in your last sentence, lies the crux of the real problem with ethanol. I may be speaking a bit out of line here, as I haven't looked at the economics of growing corn for the ethanol trade for some 12 years. At that time growing the corn for ethanol, at a price to make the fuel competative, was definately not going to keep the wolf away from the farmer's door. In my many years of farming I have seen more of these scheems to keep farmers going, and in reality all they turned out to be was farmers keeping society going.

The other matter that could be a factor here is if that millitary cost was factored into the cost of crude oil, probably farmers could become wealthy growing corn for ethanol.

Farmers used to take a certain pride in the fact their products kept the consumer cost of living at a minamum. Today farmers still supply their goods at lowest price possible. There is one difference, now it is just cheap raw materials for the corperate elite. The very same people that need the millitary for cheap crude.

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Michael Soldan

10-26-2003 14:30:30




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 Re: ethanol and fuel mileage in reply to Terry, 10-26-2003 08:45:37  
Terry, when I use Ethanol I get slightly less mileage but I wouldn't peg it at 10% less. I usually get around 24-25 with my truck and ethanol will give me about a mile or so less. I run a 2001 GMC Sierra with 4700cc engine. Ethanol does burn much cleaner and it will help someone who has to have an E-test.( Here in parts of Ontario your vehicle has to meet certain emissions tests)..... Mike in Exeter Ontario

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