Hi, I have a 1985 Bertram 30 with a 220 Gallon Fiberglass Tank. As we approach the end of the season in the Northeast, we now have to start planning for Winterization. A standard procedure for Winterization over the years was to fill up your tanks with Gasoline before winter storage to cut down on water/condensation. That was before this Ethanol fiasco! Now if we have phase separation in the E-10 Gas, the Ethanol can eat away at the fiberglass resin in the tanks and also leave deposits in the Heads of the engine. I have been treating the fuel with Startron for the past year. What should I do this Winter? Should I fill up the tank with Startron treated fuel or should I leave 1/2 or even less than of tank of Startron treated fuel?

Ethanol is classified for medical purposes as a central nervous system depressant. What is it in ethanol, its chemical structure or the elements found in ethanol, that reacts with the central nervous system that makes it a depressant?

Would it be helpful to put a gallon of ethanol in my tank each time I fill up? There is a station near me that is selling E-85 for around a buck less than 87 octane gasoline.

The vapor pressure of ethanol at 40 degrees C is about 35 mm Hg, and the vapor pressure of water at 40 degrees C is 55 mm Hg. A sample of wine at this temperature has a mole fraction of ethanol of 0.10, and a mole fraction of water of 0.90. What is the vapor pressure of ethanol and water of this wine, and what is the mole fraction of these components in the vapor?