I store my Corvette over the winter to keep the salt off the car. Last year, I used FP-60 to keep the fuel fresh. With the legislation that recently passed, all of our fuels now have 10% ethanol. Living in a coastal state, with a lot of marina's, I am seeing recommendations for the boaters to drain all their fuel rather than top off the tanks because of the ethanol. I had planned on using the FP-60 again and topping off the tank, but now I am not sure. Does anyone have any good technical information on the best approach to fuel storage when it has 10% ehtanol?