quote Garry in Tampa:
One word of caution, The full synthetic is a superior oil. So good you cannot break in an engine with it. It is designed to be environmentally friendly and therefor breaks down over time. For that reason it is no good for long time storage. Fog with a regular oil for long time storage. . . 😉
Not sure about this, but I think I just lost a motor for that reason (storage with full synthetic and not fogged). And I’m a big believer in full synthetic too. Disclaimer: I haven’t torn the suspect motor down yet to see what happened for sure. But the roller bearing sure screeched when I started it up.