Alright story time, one of dads co-workers has a 23ft deep-vee, and he normally fills up at BP because it's the closest gas station to his home on the way to the lake. Well occasionally he fills up at the marina or another gas station, well towards the end of the year his boat wasnt running right. So he took it in to have that problem checked out and to get it winterized. He got asked weather he ran BP fuel in it, and admitted he did. Tech could tell he ran BP because the additives in BP reacted badly with the additives from other companies fuels, that it made white floating contaminates in the fuel.
In the words of the tech, "if your going to run BP, only run BP... dont mix anything else with it". Sorry for the long story