I've always heard to soak the deck boards with diesel.... I don't know if that is just a redneck thing or not, but that is what my brother (who is a redneck) does for his bobcat trailer and its been holding up for 25+ years.

I always just applied used motor oil to all 6 surfaces of each board.

More mopped onto the top and bottom as the years wore on.

Sierra Club hates your ass!

Circle of life

It came out of the ground so it can go back there...



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Well, what’s your budget and what is your weight limitation? If you have a big budget you can go with an exotic like Ironwood, but it adds a whole lot of weight to a trailer that you might not want. If you’re light on budget go with a softer would like fir, which old growth mentioned. But I strongly suggest sealing it on all six sides like Selador said. Whether you use a finish or an oil to impregnate the wood and keep the water out you should do something on all six sides.

This is why we can't have libertarian ideals and its astrology for old white men. Take it to a auto parts store and don't be an asshole.

If you friend plans to have nice things on it use Tung oil, if not (and stores it where he isn't worried about oil stains) 2/3 motor oil (try to keep a straight weight) and 1/3 diesel (w/o additives if you can). if you use chained weights the xW-YY, it tends to stain more from my experience.

Waste management also has recycling centers where you can dispose of any recyclables (including used motor oil) free of charge.

You guys understand that was a bit of sarcasm, wrapped up in some realism, right?

Coating the boards on a trailer is nothing considering what people used to do with used oil

WTF does astrology have to do with this?

Scott is right. When I was a kid we used to always pour used oil into a hole in the ground. Did it for years. Today we can recycle it. Back in the day there was no recycling available. You either dumped it or burned stumps with it

If its an equipment trailer I'd suggest using 15/40wt.
For a landscape trailer I'd use 30wt.
For a race car trailer I'd adhere to 20/50wt.
Is its for hauling scrap metal, Id slather it in 80/90wt.

Thanks Ray!

Why the mixed weights over straight weight? This is a question as my experience is with lighter chained weight 5 or 15w40 is that all the chained hydrocarbons tend to separate and sometimes the weight additives start causing wood to have weird expansions/contractions. Using a heavy straight weight (like 40+) and using kerosene or red diesel (w/o additives) and doing on a warm day has been the best for me. Want to learn something better if I can.

I used to pour it on my gravel driveway....one day my neighbor was bitching at me about it....that is until I asked him what the road in front of our houses was made of.....

Asphalt is bonded by Bitumen, its comes from the same petroleum but a different (Long carbon chains, its viscosity is orders slower). The oil you dumped is small chain and goes into the groundwater. Its like life, where the answers are more complex than yes or no (such as should we frack, but more like is this place ok to frack)

To ad to your infinite knowledge its because,,,

Diesel equipment runs on 15/40
Most lawn mowers run 30wt
Race engines like 20/50
Scrap metal like axles and gears boxes seem to always be spewing out stinky 80/90wt

My slick joke was lost during your quest for education.