Take it for a ride, it'll be there. Ideally it would be good to get it into the carbs. Sometimes I just remember to get it into the tank about the 2nd week of January. At least that keeps the gas in the tank fresh. I've used it on the boat, tractor, and stored cars for years. the boat is the most susceptible to gummed up carbs, (it has 3), and i haven't had carb trouble on the boat in ten years. Knock on wood now.