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Bill USA

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Member since: Wed Mar 3, 2010, 05:25 PM
Number of posts: 6,436

About Me

Quotes I like: "Prediction is very difficult, especially concerning the future." "There are some things so serious that you have to laugh at them.” __ Niels Bohr Given his contribution to the establishment of quantum mechanics, I guess it's not surprising he had such a quirky of sense of humor. ......................."Deliberate misinterpretation and misrepresentation of another's position is a basic technique of (dis)information processing" __ I said that

Journal Archives

study: gasoline without ethanol increases wear & tear on engines - aromatics are the problem

[font size="+1"] “In ... Wichita [Kansas], the average E0 has 46% more benzene and toluene by volume than the same 87 octane blend with ethanol."[/font]


The Urban Air Initiative (UAI) has released a study that finds ethanol free gasoline blends actually increase the wear and tear on engines including hoses, seals and fuel tanks. In other words, the data supports ethanol blends lead to cleaner engines. The findings were presented at the semi-annual meeting of ASTM by Steve Vander Griend, technical director for UAI who also works for ICM.

The report demonstrated that high aromatic content of gasoline, including toxic aromatics like benzene and toluene, negatively impact engine parts. Vander Griend explained in his presentation that the toxic aromatics create a significant increase in the escape of harmful emissions that can have a devastating impact on public health as these are considered by the Environmental Protection Agency has known and suspected carcinogens.

“What we are seeing is that benzene and toluene are increasing permeation, which means increasing the amount of fuel vapors that seep from a vehicle. For anyone who has a garage at home and smells gasoline, vapors are escaping through the vehicles fuel system or small engine gas tank,” said Vander Griend.

Also during his presentation Vander Griend explained that extensive testing was conducted on fuel lines, gas containers, and plastic components. The materials were each soaked in straight gasoline (E0) and a 10 percent ethanol blend (E10) for extended periods of time. In every case, said Vander Griend, the ethanol free gasoline increased the damage to fuel lines, gas containers, and plastic components, while the materials soaked in E10 were impacted less.
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