Originally Posted By: toneydoc
Sur will but it is much more expensive than a gallon of bar and chain oil
If I had to buy it than you'd be absolutely correct... Except I have a 5 year old liter of 80W90 that I'll probably never use. That makes the 80W90 the cheaper option for me.
Just clipped over 5000 pounds of oak branches in a huge trimming project. My chain saw has always used waste oil from our fleet. Works well and I get excellent chain life and little stretching.