Used Fry Oil as Wood Preservative?

in-too-deep · Jan 23, 2012

My neighbor gets a bunch of used oil from his sisters restuarant. Comes in 3 gallon jugs. Assuming its peanut oil but not for sure. Would it be worth it to paint wooden fences and posts with the stuff? I know he can use it like diesel in his truck and tractor...but I just got curious about whether it would be good weatherization for wood.

R2D2 · Jan 23, 2012

If you painted your fences and posts with used cooking oil you'll probably have a bunch of dogs chewing on them.

Anonymous-0 · Jan 23, 2012

Had a factory that I delivered to that used it to hold down the dust on the drive back to their docks. After it was down for a while it stunk and it was even worse when it got wet.

in-too-deep · Jan 23, 2012

Good point. My dog Sadie would probably love it.

GeneMO · Jan 23, 2012

There is way more to the process of burning used fry oil in a diesel than just dumping it in the tank.

There is quite an elaborate process to make it suitable as engine fuel.

Gene

in-too-deep · Jan 23, 2012

I know, I just didn't want to get into that in a discussion about wood preservative. Could you maybe tell me more in my post above?

in-too-deep · Jan 23, 2012

I know, I just didn't want to get into that in a discussion about wood preservative. Could you maybe tell me more in my post above?

Bob M · Jan 23, 2012

Used fry oil will probably preserve the wood to some extent. However it's also gonna make your fences irresistible to gnawing critters like mice, squirrel, porcupine, beaver, etc. And of course to every dog that wanders past.

Bkpigs · Jan 23, 2012

That is what my dad does with his old frying oil. Better than nothin and a lot more environmentaly friendly than motor oil.

Rick Kr · Jan 23, 2012

On top of every neighborhood animal chewing on your fence, the oil takes on a rancid smell after a while too.

Rick

LarryT · Jan 24, 2012

The cooking oil will attract bugs. May turn the water for a short while but if I was going to use oil to preserve a fence and the like, I would use boiled linseed oil. It will impregnate the surface and seal it with just a couple of applications. Benn using it on my front porch for years. I spray it on with a cheep little garden sprayer and I redo a coat about every two years. So with a family of 9 here it gets a lot of traffic and holds up much better than the Thomson's Weather seal.

Stephen Newell · Jan 24, 2012

I wouldn't recommend cooking oil for a wood preservative. Under a microscope wood is like a group of drinking straws in which a wood preservative plugs the straws keeping water out. A wood preservative contains linseed oil which soaks into the wood and turns hard where the cooking oil would not. The only reasonable use for the oil I've heard of is bio-diesel or in oil stoves.

showcrop · Jan 24, 2012

(quoted from post at 19:35:41 01/23/12) There is way more to the process of burning used fry oil in a diesel than just dumping it in the tank.

There is quite an elaborate process to make it suitable as engine fuel.

Gene

I have a friend who has been burning it in his old Mercedes for approx. three years. He does nothing more than filter it.

Pycoed · Jan 24, 2012

I have an old Merc engine in my 4X4 (Ssangyong Korando), & use straight new vegetable oil in it as do many in UK. If I could find a reliable source of the used stuff again, I'd use that because all it needs is filtering down to 1 micron for these engines.

You must be certain your injection pump is suitable for straight or waste veg oil, the old Merc ones are fine but others may need new Viton O rings & most common rail pumps will NOT run veg at all. If you have one of those then you must convert it to biodiesel, then you can run any diesel engine on it.

Mike (WA) · Jan 24, 2012

Boy, use that stuff on fenceposts and you're just askin' for peanut weevils. You'll rue the day.

sammydwm · Jan 24, 2012

(quoted from post at 03:35:41 01/24/12) There is way more to the process of burning used fry oil in a diesel than just dumping it in the tank.

There is quite an elaborate process to make it suitable as engine fuel.

Gene

Yeah, the elaborate process involves hanging a filter sock over an empty bucket and dumping your oil through that.
Then it goes straight into the tractors during the warm summer months.
We ran an International 826 White 2-135 and a New Holland TC35 on used fry oil without any modifications whatsoever or anything more elaborate than a quick run through the filter sock.
Buddy has put tens of thousands of miles on various Chevy products with no processing of the fry oil either.
Most of the effort will be spent on the vehicle to keep the stuff warm so you can use it year round.

Used Fry Oil as Wood Preservative?

in-too-deep

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R2D2

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Anonymous-0

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in-too-deep

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GeneMO

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in-too-deep

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in-too-deep

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Bob M

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