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Originally Posted by redshift
Gotta disagree with that Luc. Ethanol is hygroscopic, which means it absorbs water. In vehicles designed for gasoline this can lead to multiple issues, not the least of which would be frozen gas lines. There are many people who swear up and down that their mileage has decreased a significant amount with using adulterated fuels.
They have been mucking with our gas for at least 20 years. It started with the oxygenated fuels in the late 80s. This was the death knell for many a 2 stroke engine as it caused them to run lean and blow holes in pistons. Ask any snowmobiler what they think about either of the above and you'll get a very angry look at the least!
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How pure is the Ethanol you're talking about? Here in the US, they have trouble getting to the level of purity found in the Ethanol in Brasil. I know the IRL is bringing their fuel from Brasil. The tuning of an engine to accept Ethanol will determine the performance one requires. You can go either way if you want, but most want all the power they can get. If the US and other countries increase the amount of Ethanol to let say 25%, the price of gasoline can be cheaper. There are a lot of vehicle that is Flex Fuel and the number is increasing. A 75% gasoline/25% Ethanol mix would be nice. I think the current number is 90% gasoline/10% Ethanol (Or is it 85% gas./15% Eth.). All this numbers are confusing, but most Brasil is in a warmer climate zone so they don't have to worry about frozen gas lines
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