Yes, but Gregoryful was trying to float that red herring (pipeline corrosion) as support for Williams blatant screwup about ethanol plants producing 95% ethanol and how it was "bad for cars" because of the water content.
I simply haven't studied the issue of pipeline corrosion by ethanol (I HAVE studied pipeline corrosion by hydrogen--another red herring argument used to denigrate the hydrogen economy idea). But I'll pull out my "Corrosion Engineer's Handbook" and give it a quick look.
So the capitalists who do not use pipelines to ship ethanol do not see it as a cheaper alternative to shipping it by truck? And their rationale is unknown to you?