What was the approximate viscosity of 600W?

[Dee Jay]

I just did a very unscientific test on some lubes I have in the shop. My test consisted of sticking my finger into the lube and see how it ran off the tip of my finger. 250 ran off pretty fast. Steam cyl. oil took a lot longer. 600 w is like roofing tar and piles up when it returns to the container. This 600 is probably 35 yrs old and has been stored in a closed container.