Ethanol in this quanity will do well nothing really except support your local agriculture economy. In states where farming is a good chunk of there economy ethonal has become a standard. In modern builds they should do fine espicially if you have rebuilt the fuel system. In older cars everything is metal and at the 10% concentration won't corrode it any faster then gasoline. So basically fill it up and forget about. The concentratio is so small that it at least in my experience I didn't even half to ajust the carb. So please don't call it deathanol. I believe your website when I see certified studies and ends in something other then .com .
And yes I have farming in me blood so I am slightly bias
