['68OrangeSunshine]

I use Sta-Bil all the time. I get a 10-cents-off-per-gallon deal from a supermarket chain. The discount can add up to a dollar off a gallon. At the end of the month, I tank up and can fill as many as 7 jerry cans. Since I will need to stash these cans until needed, I use the stabilizer. The imporoved formula can keep gas good for 24 months now. Two ounces per 5 gallons.
While the manufacturer claims it's a performance booster, I haven't noticed that, only that my stored gas is still good after a year. I try to rotate before that, though.
There will be a pink stain on the porcelain of your spark plugs. The color does not affect performance, but it can throw off tuners who aren't familar with it.
I usually add 5 or 10 gallons to my tank, when low, then top off with fresh pump gas.
If you have a hangar queen and must leave it parked for months, you can also put a bottle of Sta-Bil in the fuel tank, and the fuel will not break down.