Mark is correct. The best way to store an engine is with the fuel system completely dry. This is the way they were shipped and stored when new. When I had my tool rental business, equipment such as pumps and generators were stored with dry carburetors, as the time of next use was uncertain. Equipment that was no longer used was stored completely dry with some oil added to the cylinder and the engine stored on top of the compression stroke. This kept moisture out of the engine and reduced the chance of stuck valves. Engines stored like this would fire right up even after sitting idle for years.

I read somewhere that the should be started and run periodically; once a month for 5 minutes or so.

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'O=00=O'
bmw 2002.
long live the legend

forget the stabil.

run it until it sputters out of gas. at that point. change the oil and put it away.

that's it my man.

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Ben
1987 190d 2.5Turbo

Unlike 'rscurtis', I haven't been quite so fastidious about storage. Haven't bothered adding oil or rotating the engine to compression TDC.
But I'll take it into consideration.
As for draining the gas, most of my yard equipment may see up to six months of inactivity and has plastic fuel tanks. For them, shutting off the gas and running the carbs dry has been sufficient.
My generators however could be idle for two or three years, and have steel fuel tanks, so draining the gas is more critical with those.

Happy Motoring, Mark

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DrDKW