Johnny, I've read and heard all the same dire warnings you have. But in actual practice, the ethanol doesn't seem as corrosive as some expected. I started soaking a piston from a 390 in E85 several months ago, it still looks the same. The more I read it seems there are two issues, one, the moisture can cause problems, but can be managed. The fact the ethanol will conduct an electrical charge is problem two. The is then the possibility of electrolitic corrosion. I am hoping keeping things grounded will help there. There is also the possibility of having some of the tanks anodized or nickle plated, that gives just as good of performance as stainless. DF, on lunch @ work