back in 1987, My father would do oil changes on our brand new Chevrolet Chevette(we weren't wealthy back then). He would pour it into a Oil Can so he could use it on the Chain saw as a bar and chain lube and he would put some in a little oil can so he can lube the chains on my 5 speed Huffy bicycle!! And It worked great. I still do this on my Mongoose bike today.
The bad thing my dad? He would use that dirty oil and use it in our 3.5 HP B and S Lawnmower engine every season! Strange thing is? He still has the lawnmower and use it to cut the grass!!
Any thing you guys use it for!! I know some people who work at farms would use it as a alternative "grease"