My new 1930 2-dr sedan

[mcgarrett]

Originally Posted by David in San Antonio

Ethanol is highly hydroscopic , that is, it absorbs water like crazy, even humidity from the air. This can rust the inside of an uncoated Model A fuel tank.
Ethanol does have some upsides. “Dry Gas” is ethanol, which comes in handy if you get some water in the fuel. Adding ethanol allows the water to go through the engine. Another potential benefit of ethanol is that it cools the intake charge, and can boost the anti-knock properties of the fuel, potentially allowing a higher compression ratio.

Not meaning to sound like a college lecture, but to help clarify with a more accurate lexicon. I was wondering about the correct usage of the word and found this on the ole interweb...I thought I would post it. Just wanting to help eliminate confusion and misinformation:

"Hygroscopic" and "Hydroscopic" are two terms that can easily be confused due to their phonetic similarities. However, only "Hygroscopic" is the scientifically accepted term, denoting a substance's ability to attract and hold water molecules from the surrounding environment. This property is vital in many industrial and scientific applications, such as in the storage of certain chemicals or the design of humidity-sensitive equipment.


On the contrary, "Hydroscopic" is not a recognized term in scientific lexicons. It's often a mispronunciation or misspelling of "Hygroscopic." The prefix "Hygro-" comes from the Greek word for moisture, making "Hygroscopic" a term inherently about moisture absorption. Thus, using "Hydroscopic" instead of "Hygroscopic" is a mistake that can lead to misunderstandings, especially in contexts where the precise meaning is crucial.