So I had a used 2001(but new to me) 200hp Johnson Oceanrunner outboard installed on my 1998 20' striper cuddy cabin boat this weekend, before hooking up the gas line I checked the gas condition and look what I had found (see attached picture) I pumped this out of the tank and didn't really smell like bad gas but just diluted gas.... The boat sat for about 8 months with stabil in it, it was also in a parking lot of a mechanic that I'm sure had issues with his neighbors. So thinking someone put something in the tank? but cant prove it... The tank is a plastic belly tank built in to the boat, and the hoses are new. So my question is why white and milky look to it?? I will pump out the rest of the fuel but now how do I clean the tank? Do you think the plastic is breaking down? why white? FYI the fuel in the glass jar had sat for about 2 hours before I took this picture, any advise will be appreciated for some reason I can not upload the pic I have but will email it if you want to see it?