Used motor oil to coat a wood deck anyone know anything about this

Question

I heard recently that if you coat a wooden deck with used motor oil it will do a better job of protecting the wood than if you used something on the market that is made to treat the wood and that you may never need to retreat again

Answer 1

look here. They have used it for protecting wood.
http://www.forestryforum.com/board/index.php?topic=37659.msg545692