NEWS RELEASE

Immediate Release:
October 5, 2009

Randy Klein: 800.632.6761

Study: Ethanol helps your vehicle be more efficient

Higher ethanol blends increase engine efficiency, which is good for the environment and reducing our dependence on foreign oil.

LINCOLN, NE – High ethanol blends provide better energy conversion within an engine than other fuels – meaning you can travel further on less energy, according to a study conducted by the University of Nebraska and funded by the Nebraska Corn Board.

“What this suggests is that the increased efficiency of ethanol has a more positive impact as a replacement for petroleum fuel than what it is commonly given credit for,” said Randy Klein, director of market development for the Nebraska Corn Board.

“It also suggests that e85, which contains 85 percent ethanol and only 15 percent petroleum-based gasoline, may be the most efficient and often the most cost-effective fuel for flex fuel vehicles,” he said. “Since e85 is also the cleanest fuel on the market and contains so little petroleum-based gasoline, it has a very positive impact on the environment and can significantly reduce our use of foreign oil.”

The report, which is available from the Nebraska Corn Board, said e85 improved energy conversion by 13, 9 and 14 percent, respectively when compared to e10, for the light, medium and heavy loaded vehicles tested.

The researchers acknowledged that higher ethanol blends like e85 have a lower energy density, or fewer BTUs per gallon, than e10. That often leads to fewer miles per gallon for higher ethanol blends, but that gets partly offset by ethanol’s improved efficiency.

“While fewer BTUs typically means fewer miles per gallon, energy density is only part of the equation when considering fuel economy,” said Loren Isom, one of the researchers in the study.

“Fuel economy is actually a combination of fuel efficiency and fuel price, and on that point, higher ethanol blends may be the better choice,” said Isom, who is with the University of Nebraska’s Industrial Agricultural Products Center. “It just depends on fuel prices at the time. Specific vehicles may test out differently based on engine design and settings, but increased efficiency from ethanol blends make sense, and for the fuel prices we looked at in the study, e85 was the best choice every time.”

In addition to Isom, the study was conducted by the University of Nebraska’s Dr. Milford Hanna and Robert Weber. While the Nebraska Corn Board funded the project, additional support was provided by the State of Nebraska Transportation Services Bureau, which provided the flex fuel vehicles used in the tests, and The Shop Inc., where the tests were conducted.

“Despite fewer BTUs per gallon, e85 was the lowest cost fuel per mile and the most efficient fuel in the study,” Klein said. “At the same time, e85 significantly reduces the use of oil-based gasoline, making it an outstanding choice for drivers with flex fuel vehicles.”

The Nebraska Corn Board is a self-help program, funded and managed by Nebraska corn farmers. Producers invest in the program at a rate of 1/4 of a cent per bushel of corn sold. Nebraska corn checkoff funds are invested in programs of market development, research and education.

-30-

EDITORS NOTE:
To download the full report (.pdf), follow this link: http://www.nebraskacorn.org/publications/mid_level_ethanol_blend_study.pdf

Two print quality images available to accompany this story, featuring cars being tested. Just go to www.nebraskacornnews.org to view and download.

Broadcasters: There are audio cuts available for this news release. To review and download, go to www.nebraskacornnews.org. Intros are below:

RandyKlein_EthanolStudy_1.mp3 (10 seconds): The Nebraska Corn Board’s Randy Klein said ethanol is more efficient than people believe.
RandyKlein_EthanolStudy_2.mp3 (20 seconds): Klein said the study showed some positive results for e85.
LorenIsom_EthanolStudy.mp3 (36 seconds): The University of Nebraska’s Loren Isom explains how fuel economy was calculated in the study and notes that e85 proved to be the best fuel evaluated in the study.

CUTLINE FOR PHOTOS

Corn_eBlendRelease_Photo1.jpg: Vehicles, like this sedan, went through chassis dynamometer testing as part of the study. The dynamometer simulated different road and vehicle operating conditions, allowing researchers to fully measure a number of important data points to measure the performance of different ethanol blends.

Corn_eBlendRelease_Photo2.jpg: Vehicles went through chassis dynamometer testing as part of the study. The dynamometer simulated different road and vehicle operating conditions, helping researchers determine that e85 was the most efficient and cost-effective fuel tested.

As shown in this chart from the study, as the ethanol content of the fuel increased from e10 to e20, e30 and e85, the energy conversion within the engine increased as well — meaning you could travel further using less energy. This was true for the three different flex fuel vehicles tested at different loads.

##