Thats interesting. I hadn’t heard of that being used. Any pictures?
Personally I use water soluble oil similar to this:
I’ve just had one of these come for this very reason:
You do need to hook it up with a compressor. I’m also considering hooking mine up to a garden style pump action weed sprayer so I don’t have to wire a direct feed to my compressor.
@RichCournoyer has a excellent hack using a old WD40 can