Ben D, N CA - 5/3/2014 19:01 In Oregon we are required to run 5% bio. It hasn't helped with the fuel problems. I think it is because of water as much as anything, but the bio is not the answer. Some suppliers claim they are adding a lubricity additive, some say it fine without it. Regardless, I haven't seen all the horror stories there is supposed to be, other than what you'd expect from 30 year old fuel systems anyway.