Well I've heard a ton of negative feedback from a whole lot of Repair technicians and gear-heads alike, They can't all be wrong. Alcohol will dry out most anything washed with it. Alcohol is the same thing only called Ethanol, and I'm only too well versed in the damage that ethanol can do to a metal/rubber/cork type of sealing systems. It eats away at them over time. I have a friend from South America and he has told me that the majority of autos down there are Japanese, and are imported with Stainless steel fuel system for the fact that almost all of SA uses E-85. But for me, I only know that the 2007 Pontiac Grand Prix GT with a 3.8 liter supercharged engine that I own states on page 338 of the owners manual that
"This car must have a minimum octane rating of at Least 91 octane and
use no fuel with an ethanol content of 10% or greater." And why can''t we stick to 10% ethanol ? Your MPG drops significantly with the use of ethanol.
Now I know the alcohol and water doesn't mix, and I'm no chemical engineer, but I think I understand the phase separation is simple enough, Alcohol/ethanol weighs more than oil so the ethanol is going to live on the bottom of you fuel tank along with your fuel pump pickup. But I have to admit I never thought about the refineries cutting the octane rating of
'the' gasoline being blended as the ethanol has a very high octane rating on it's own and since your going to use up the ethanol first, your engines 'Knock sensor' is going to be getting a real workout once your fuel guage is below 3/4 tank.
But their are some zealot's for the greater use of ethanol, (I can only assume they own stock in corn futures or some deal like that. We all want clean air, but do we have to shave time off our engines life cycle to get it ? Since GM is going all "Direct Injection" now, I can't help but to think that the ethanol/alcohol mix isn't all that great an idea. Guess since my GMPP warranty runs out in August 2013 I assume I'll find out soon afterward. But as of now, E-15 isn't sold in the Delaware Valley just yet. I have seen at the Home-Depot and Auto-zone a product made by Lucas oil and other companies with the name of
"Ethanol remedy" and on it's label it states it "Offsets" the damaging effects of ethanol on Gasoline engines, lawn and garden and automotive use as well. Only furthering my suspicion that the things that take place with-in the DC beltway are as toxic & corrupt as always. And in the end, we the consumer gets it. What a way to run a country.

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