You can add stabilizer to the gas and it will last quite a while, especially the Marine version, but that's not the biggest problem with long time storage on flat tappet engines, (engine not being run for extended periods), it's initial cam lobe lubrication on start up and that's where a cam can get damaged enough to shorten it's life span. You can prelube all the bearings if you wish, but not the cam lobes as their lubed by the splash system on these engines. Even though some might disagree, but I've done this for years, if I know an engine will not be run for 6 months or more, I drain the oil, refill with new oil and a double batch of STP run it for a few minutes. It gives the oil a sticky quality, Down side, should be drained <span style="color: #FF0000">AFTER</span> warm up from storage, especially in cold weather. Misting the cylinders isn't needed in my opinion, unless it's going to be stored indefinitely. That's just how I've done it over the years. Never wiped a cam lobe yet. Regardless what some will say, STP is a very good product. We never ran a race engine without it. PJ