I've heard about a 50/50 mix of diesel and used or new motor oil. I'm going to try some on my flat bed trailer.
I have 20ft Flatbed with 2ft dove tail. Last summer the wood was 3 yrs old and starting to check badly. I made a mix of used motor oil and diesel thin enough to spray out of a cheap 2gal sprayer. The first coat I put on, the wood was dry by the time I got from one end to the other. Over a couple of weeks, I put on approx 3 gal Contrary to belief, the deck is not slick.
