For home use, you probably wouldn't see much difference. Some of the pros I've talked to have found significantly longer parts life and less down time when using the better products.
Originally Posted By: harley145000
just dont use used motor oil
Motor oil is a good deal better than no oil. Proper bar oil will indeed give longer life of the components but you have to be putting a lot of hours on a saw to tell the difference.
Joe
strained used motor oil makes great bar oil. has cut hundreds of cords of firewood for me. used HDMO makes the best.
pitchy fir and dry maple takes lots of chain oil. oil is cheaper than chains and bars