I have another question along the same line - Should I use an after-run oil in the .63?

I have heard petroleum oil can damage silicone parts in a YS, I expect the answer is no. Assuming that is correct, should ANY ARO be used?

If this is a dumb question, please be patient with me. This .63 (as soon as they reach my dealer) will be my first YS.

Thanks in advance! ...Ken