Thank you Str8vision with your explanation/reasoning not passing me for a total idiot, which sometimes I can be...
You don't want to be stepping into my bailiwick.
Gave up on original source for my silicone oil and found a new source. They had it in stock and shipped it right away. Only problem is that it's been in transit longer than it takes when I buy from China and this is stateside. Yes, I just cross-posted between threads, but I'm twiddling my thumbs.