Sullid01: Where are you getting your "retail" B99? I live in Palm Bay and afik the only place to get ANY concentration of BD is at Glover's, and they told me a year or so ago that they had no way of pumping B99 into my tank, so I have just used a couple of tanks of their B20, and that said their B20 was almost .20 per gallon more than dino at my Sunoco on malabar Road, plus Glover's is kinda out of the way for me and a bit of a hassle to actually go in and buy it.....(Great folks there though!!)