Diesel / motor oil wood preservative for trailer deck

[Nytracker]

My trailer is a couple years old now . I want to treat the decking / preserve. 

On the farm back in the day we use to mix oil and kerosene or diesel fuel . For the life of me I cant remember the ratio. I'm thinking it was 5 parts oil to one part diesel.  Painted on the hottest days . We use to do the hay wagons between cuttings  fourth of july weekend. I  dont remember changing boards very often . 

I gave up treating my house deck and went to composit   . Anybody  have the recipe.  Pygmy  probably  knows ... he probably  dabbed  a bit behind his ears  before heading off to the green onion on Friday  night. 

[Pygmy]

16 minutes ago, Nytracker said:

My trailer is a couple years old now . I want to treat the decking / preserve. 

On the farm back in the day we use to mix oil and kerosene or diesel fuel . For the life of me I cant remember the ratio. I'm thinking it was 5 parts oil to one part diesel.  Painted on the hottest days . We use to do the hay wagons between cuttings  fourth of july weekend. I  dont remember changing boards very often . 

I gave up treating my house deck and went to composit   . Anybody  have the recipe.  Pygmy  probably  knows ... he probably  dabbed  a bit behind his ears  before heading off to the green onion on Friday  night. 

The pretty ladies dance on Saturday Night.....It's " The last Lap" now...Locally known as " The Last Lick"...

Back when I was a youngster,  when it was just a beer joint , it was probably the best place around Dogpatch to get your ass handed to you....Nowadays, it's much more peaceful....

Edited July 1, 2020 by Pygmy

[Nytracker]

 Been in the later establishment  once ... them " ladies " will probably  hand you your ass ... and toss you to the curb.

[G-Man]

We did 4 to 1 used motor oil to fuel oil

On our hay wagons last.about 20 years untreated lumber

[mowin]

I always did what ever I had on hand.  If I had a few quarts of old motor oil after a oil change and had some left after starting the burning barrel, or campfire, I mixed it with a gal or so of diesel and laid it on thick during a hot streak. 

Realistically, I don't think it helped.  I haven't done it in years.  My decking on my landscaping trailer is 11 yrs old PT boards, and has never been treated with the oil/fuel method.  It's Used every day during the spring to fall to haul mowers and smaller equipment around.  

My 14k equipment trailer is 6 yrs old, and I need to replace the decking this fall. Only used 2-3 times a month, and sometimes sits longer. I really think the less it's used, the more the "treating" method may help, but why didn't the less used trailer with the same decking boards need replacing?

[Nytracker]

 I honestly believe the pressure treatment  is hit or miss depending on the manufacture.  I have some that were real green and wet on purchase  that have been sitting on rocks outside going on 25 years . Last deck I built was mich lighter  and dry at purchase  started checking at 3 years and had to be replaced at 6 .