My Whaler has 2, 9 gallon tanks. One was left full and treated with Stabil, the other was run dry and left empty. Ran the Stabil all thru the system and fogged the hell out of the motor. Pulled the batteries and wrapped with a tarp. I`ve never had a problem in the spring done this way. Then again it`s only 4 months before the boat gets back into action with the early holdovers.