I still use the old timer's method of treating fence posts, fence slats, decks, etc. Better than any modern wood preservative or moisture preventative.
Used motor oil (this also means I still change my own oil) and diesel in a roughly 50/50 mix in a sprayer. Poor man's creosote. A few coats of that and you are good for at least 5 years. Just repeat every now and again and your fence or deck or trailer deck, etc. will last for just about as long as you will.
It's also great to spray along fence lines, or so I'm told. I wouldn't know. Maybe.
Used motor oil (this also means I still change my own oil) and diesel in a roughly 50/50 mix in a sprayer. Poor man's creosote. A few coats of that and you are good for at least 5 years. Just repeat every now and again and your fence or deck or trailer deck, etc. will last for just about as long as you will.
It's also great to spray along fence lines, or so I'm told. I wouldn't know. Maybe.