Quote Originally Posted by James View Post
I'm not sure what happens to the oil. The Series 60 manual does state however that if you're going to not operate the engine for more than 30 days to:

"Fill the crankcase to the proper level with Tectyl® 930A preservative lubricating oil or an equivalent 30–weight preservative lubricating oil
meeting Mil-L-21260C, Grade 2 Specification."

Don't! That stuff is the first cousin of cosmoline, a waxy rust preventative used by the military. You have to get it out of there once you put it in...not so easy!