Long term storage.

You can fog it after as well, just not as easy. pull the plugs and fog each cylinder, might be worth pulling the carb and fogging the intake to coat the intake valves and a squirt in each exhaust port. maybe turn it over once a year and re spritz the cylinders from time to time. I would hope that would do it. will find out eventually myself, have one that's been in storage that way for a good 6+ years. going to pull the heads on mine for a valve spring replacement. hoping the cylinders will look as good as when it was put up.