Good theory- - - - -lousy in practice. I've seen 3-month-old gasoline that wouldn't light off with a match, let alone a spark plug. Unstabilized gasoline also forms enough gum in valve guides to stick valves and bend pushrods- - - - -it happens to members here often enough to make all of us spooky about running even slightly stale gasoline. Compared to the cost of a valve job, a tank of gasoline, even at today's inflated prices, isn't worth the risk. Drain or siphon as much as possible before storing a vehicle, and dump a healthy dose of stabilizer into whatever's left in the tank. Better safe than sorry!
Jerry
