Hi all, Dave here from the 7.3 forum. I live in Charleston SC and we finally got a single source for BIO and it is B100. It is $3.00 per gallon in small quantities and the said I can get it for $2.85 in quantity. He offered me a deal and I am not sure wheather to accept it or not. He will supply the 275 gallon drum, deliver it, fill it up and keep me supplied with delivery service for $2.85 a gallon, and if the price drops, I still get the new quantity discount. I know I would use it up but it may be a few months, my question here would be if anyone knows what the shelf life is on BIO? Thanks in advance for any constructive criticizm I may deserve and keep the suggestions coming..Dave