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What a great link!!!! I was mining for info on a 1989 Mercury and found out what the gunk was in my Snow blowers fuel separator, go figure:)!! In a previous life I ran across more than one diesel tank that was left dormant and anything but full. There was all manner and form of wild life living in the layer that formed between the fuel and the water. So there I was, 25 years younger and a whole lot smarter than I am now in a repo’ed boat that I knew next to nothing about. It was dark at 0100 when some genius decided to run OUTSIDE AT NIGHT (hit the coast at Mayport, bang a left, next stop Charleston, no problem) with an untested VERY green crew, old broken down boat and a rig that gave the USCG fits (NOTE: I was asleep when the decision was made:o)… So, all was well until USNY (US Navy sailing Yacht) Gannet, making her offing, calm winds, about ten miles off, when the evil diesel bugs made their presence known. The only way that the engine would continue run was if you bled the injectors and reprimed the fuel system about every ten minutes. The best decision made was to beat feet for shore because it was airing up from the S’west.. It got even better when the primer quit when we were halfway up the channel into Fernandina Beach with shrimp fleet out bound and no place to go...

I have no clue wheather you can get bugs in gas and don’t really want to find out.. I have proven however that if a gas tank is not full you will eventually end up making water. With all the crazy stuff happening today who knows what kind of drunk super bugs are around now that might take a liking to an E-10 Martini. Phil T’s great link has word on it that points out that on the good bad scale, E-10 and water max out on the bad side. MFG recommendations are dry tanks (good luck with that) or full but not overflowing, the same advice my Old Man gave me 40 years ago (funny how long it took to follow it)... I have a feeling it will be an interesting commissioning season this year and we are all gonna learn some more..

Best Regards!!
Dave