It's a special concoction that claims all manner of magical traits. It does work as a sort of penetrating oil and will wick into tight places. So it is good for the first few turns of a "rested" engine. I suspect you can find it at you local parts store. If not then any very low viscosity motor oil will work. That is, if the engine is not frozen. It still might work anyway but will take longer. After 12 years, I would turn it over by hand a few times very carefully just to be sure you don't have a valve or two stuck open. The starter motor would not likely feel that and probably break something.
Bayless
Never express yourself more clearly than you can think
'48 Prefect
'67 Sprite (project)