Because every professional user I have ever seen is using 10W30
engine
oil. Now I'm not about to put that into my Stihls but I was just
wondering if I am wasting money on expensive bar oil?

Any comments?

I put used motor oil in my saw. Good way to get rig of it.

No, not really.

The suspended solids and other junk (such as combustion byproducts) in
used
motor oil don't do either the bar or the chain any good. That gunk is
better
off being recycled and disposed of properly.

Doug,

I have never actually put used motor oil in my saws, although I have
been told
that it can be done. I was just testing a theory
that if I said I did that Doug Miller would be the first one to tell me
that I
was wrong to do so.

Theory proven correct ;^)

Are you a jerk in real life, too, or just on Usenet?

Hey AlphaTurd!
If you don't like what he said, then just ignore him. Why can't you play
nice?
(Sad thing is, there was nothing wrong with your post about the oil.)