/diy/ - Do It Yourself

>>1966938
Used motor oil is filled with really nasty byproducts from all the combustion from inside the engine.
There is a reason its all recycled and nobody uses it for anything.

>>1966938
Only as corrosion protection of fuel, because it has metal specs if it is used.

>>1966966
Why does fuel need corrosion protection?

>>1966966
>metal specs
Pour the oil through a cheap coffee filter.

>>1966991
s/of/or/

>>1967002
Good fucking luck with that

>>1966939
People burn waste oil to heat their shops. I'm sure it's horrible for muh environment but it's free fuel.

OP said nothing about it being used motor oil, just synthetic. Yes you can use engine oil as lubricant for a lot of things. And you can use used engine oil too for a lot of stuff that doesn't need super clean oil. Roller chains, oiling your trailer deck, soaking posts in oil so that they don't decay as quickly in the ground, etc.

I actually bought a waste oil centrifuge to clean up a bunch of used oil I have on hand so I can run it through my diesel pickup and other old diesel equipment. I haven't gotten it set up yet, though I do have a general plan for how I will proceed.

>>1967196
>OP said nothing about it being used motor oil,
Oh really?
People "throw out" new oil, and he can get "new oil" for free?

>>1967215
>he can't afford to throw away brand new oil
you poor or what?

>>1967215
Not the guy you're replying to, and I see your point, but at the same time OP specifically said "synthetic motor oil." One would think if he was just raiding the waste barrel at a Jiffy Lube it would be a mix of both conventional and synthetic and probably other fluids like ATF as well. Maybe OP lives near a distribution center that trashes damaged jugs of synthetic regularly, I've seen things like that.

>>1967002

If only someone would put such oil filter in a car to catch all the particles!

>>1967215

I'd imagine if some places if a vehicle takes 6.5quarts of oil for an oil change then they probably just throw out the extra half quart. Or if he works at a dealership maybe they let all the oil containers drip drain into a tote before throwing them out and you can end up with quite a bit of oil in that way too.

>>1966938
WD-40 and motor oil (used or not) are completely different things with different uses. they are not interchangeable.

>>1967473
This.
Also, OP, putting motor oil in a lock or on a bicycle chain is just going to make it get nasty as fuck. Don't put WD-40 on your chain either. It will be an OK rust preventative, but it won't lubricate for shit, it'll pick up dirt, and it will smell terrible.

>>1967465
here Gas stations usualy have a drip tray where people can put the oil containers after they filled it in their car.

my dad told me he used the contents of that drip tray for his 2 stroke moped, only works if you have a two stroke with oil injektion,

>>1967473
They can be interchangeable. Though WD-40's rust removing action can lubricate, it is not to be used when a lubricant is called for.

>>1967728
>putting motor oil in a lock or on a bicycle chain is just going to make it get nasty as fuck
This. Though a lighter oil may work.

>>1966938
can I use synthetic motor oil as cooking oil?

WD-40 is not a lubricant.

>>1968426
It is a light lubricant, comparable to diesel

>>1968440
Yeah, put diesel on your chain.

>>1968521
never put anything on youre chain the manufacture has put a wax inside the rolers which should last a lifetime.

thiner oils like wd40 wash out the wax and make everything worse, other oils atract dirt and grind youre chain down and make a mess when youre chain hops of the gear and you have to put it back.

>>1968440
>It is a light lubricant
What exactly is your definition of "light lubricant"?
If you want to tech technical, water could be considered a lubricant.
Nobody in their right mind would call it that though.

Just like you wouldnt call WD40 one. Its whole purpose is to evaporate quickly and leave a a thin anti-rust film on stuff. Note that this film does not reduce friction either.

The fact that it has a minuscule amount of white mineral oil in it doesnt change that.

WD40 is not a lubricant, it is not a rust remover, it is called "water displacement" which is only good for short-term and light duty rust prevention, it is a fucking marketing meme that it is remotely good for lubrication because shit leaves a film that is fucked from the lightest pressure and evaporates in fucking minutes. It is only for if those who have absolutely nothing else at all around the house to temporarily make a squeaky door go away for example. But it's actually damaging to the door because people think it is magic but it is not.

>>1968978
So synthetic motor oil won't do a good job of displacing water?

>>1968989
Part of the reason WD40 does its job is actually the spray and the bubbling action helps it penetrate. If you wipe some motor oil of any kind on to some surface of course it is going to somewhat protect it from moisture (therefore rusting). But they are two different things. You can even use cooking oil, you can even use butter to prevent rust (think cast iron cookware), but that is not exactly what it is for.

>>1968870
are you retarded?

>>1969033
Not that anon, but for high end bicycle chains this is true. They are waxed chains, and when they are worn out the best chain lubricants to eek out a little more life are light oils with wax in them.

If you strip the factory film and wax off with a solvent and then throw oil onto it, they objectively perform worse.

>>1969070
what about grease

>>1969071
Grease attracts and holds dust while slows down derailleur response. Its really not ideal either.
Bicycle chains on halfway decent bikes are completely different beasts than your run of the mill heavy duty as fuck roller chain.
They are under completely different loads while needing to be mobile on sprockets.

Its worlds different than typical roller chain thats under huge amounts of stress. They dont need heavy grease or heavy oils like they would in other machinery.

>>1969070
I agree about leaving the factory lube on. I was more so commenting on the fact that they said "never put anything on youre chain" and their terrible spelling and grammar.

>>1969071
Grease will do a decent job of lubricating the chain, but it's so thick that it's difficult not to use too much. And too much lube/grease = a dirty chain because it attracts dirt and dust. Pro team mechanics will sometimes put grease on riders' chains for really wet and rainy races so it won't wash away as easily as a thinner lube. But of course those chains are getting washed thoroughly or replaced, so the dirty factor isn't as much of a concern.

>>1967235
>catch all the particles

I doubt it, some particles will likely stay in the bottom of the sump. This is why some cars have a magnetic drain plug.

>>1968989
No it won’t because oil floats on water. That’s why WD-40 includes a gummy ingredient.

>>1966938
Biodegradable chainsaw oil is better and pretty cheap.
However if you want to lube your bike chain just spreading oil on surface is bad idea. What you want is oil inside chain rollers and dry outside. To achieve it just put cleaned chain in hot oil, let it heat up, then dry it out.

>>1966938
First of all wd40 was never designed to be a lubricant
Second, no, motor oil is motor oil. Can you use it to lubricate a chain? Yes, but you'll have to keep reapplying it. Transmission fluid? No that's a terrible lubricant, its more like hydraulic oil
If it was worth much they wouldn't be throwing it out

>>1973540
>First of all wd40 was never designed to be a lubricant
Does it matter what it was designed for when it can be used that way?

>>1973559
Its about as good as spit for lubricant. It was designed as a corrosion inhibitor

>>1973563
Sure you didn't fall for a myth?

https://www.wd40.com/myths-legends-fun-facts/

>>1973565
>fake news
>posts fake news
Go fill your lawnmower with WD, see what happens.
Transmission fluid? Fuck it, WD
Seatbelt sticky? Just use WD
Dry itchy vagina? WD bro
Parts rusty? Idk man, maybe WD

>>1973578
It'll be okay Anon. Someone posted something once that was contrary to what /diy/ had been saying to me for a long time. It hurt, but I learned from it and now I'm a better person for it.

>>1973593
/diy/ Gandalf has spoken
WD is lubricant, use as liberally as desired

>>1973578
>Go fill your lawnmower with WD
Why would I use a thin lubricant like WD40 on a lawnmower? You do understand that different lubricants have different uses, right?

>>1968412
Yes

>>1969079
I soaked the chain for my winter bike once in melted candle wax and hung it to cool off before I installed it. Not sure about the lubricating properties (but I remember reading a semi-scientific test where candle wax came out close to the top), but that's negligible when riding on snow anyways. Corrosion resistance meanwhile was top notch. Wet snow full of road salt is usually murder for bike chains, but I don't think i reapplied for an entire winter. Wish I kept more meticulous notes on that experiment.

>>1973633
Use beeswax then. Lubricant is lubricant according to /diy/

>>1973686
No, that's according to you. Why is this subject so sore for you? Did your daddy yell at you when you were a kid for bringing the wrong lube and now you can't let it go?

>>1973697
Instead of the Astroglide he brought the WD-40 so he could feel it for once... His father was not amused.

>>1973737
lmao
No wonder he's butt hurt

>>1973565
>muh 400000000 in 1 magical lubricant liquid

Its not like companies havent lied about their products before.

>>1973697
Cant stand you idiots that use wd for everything, its not garage door lube, it's not motor oil, its no good for hinges, and it sucks as an antiseize. It was designed to penetrate and disperse water. Put some on a rag and wipe it along the seams on your car

>>1973737
>>1973746
Kek

>>1974092
This

>>1974111
>I really really care what someone else uses a lubricant for!

Not gonna make it.

>>1974141
>hey anons can I use x lubricant for y purpose
>hehe WD go brrrrrrrrrrr
>absolute state of /diy/

>>1973559
It's really only good for pissing away rust on a part. I carry a mini bottle since I do a lot of remote repairs. It can free rusted screws, stuck air guns, help with doors, and all sorts of immediate quick and dirty fixes. It will never be the best penetrating oil or lubricant.

>>1974162
Penetrants dont really work all that well on rusted bolts. I mean it helps to an extent but people seem to think its some sort of magical fluid. Project farm did a pretty good test on several types

Which Penetrating Oil is Best? Let's find out! https://www.youtube.com/watch?v=xUEob2oAKVs

Hey diy, I saw in some movie a man who spit on his dick and put it in the rectum of a woman, and it enter like an hot knife through butter, so my question is: is saliva a lubricant?

>>1974317
>spits on ground
>adds a dozen other chemicals
.....
Motor oil

>>1974111
>It was designed to penetrate and disperse water. Put some on a rag and wipe it along the seams on your car

Wax coating is better for that as that wont dry out.

>>1966939
farmers use it to treat fence posts. lay the posts in a vat of oil for a year or 2. they swear by it.

>>1967883
>only works if you have a two stroke with oil injektion
Is that because if you tried to mix with fuel, the oil would stratify out and engine would be damaged for running without oil when it does?

>>1967883
You'll fuck up your injectors using the wrong shit.

Stick to purpose made 2 stroke DI oil like Evinrude or Honda.