If it's EP, it almost certainly has some sulfur in it. If it isn't EP, pretty much guaranteed it doesn't.You guys might wanna try
Tractor Hydraulic/Trans Fluid
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I get nice finish, long tool life, little smoke
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it has some nice properties, it may have Sulfur in it? I dunno but has about the right viscosity for what we do
It may sound odd but,If it's EP, it almost certainly has some sulfur in it. If it isn't EP, pretty much guaranteed it doesn't.
I'm by no means inferring that I think EP hydro/trans would be good cutting fluid. Sounds odd to me.
It may sound odd but,
whatever works right
try it sometime
you may be pleasantly surprised
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I run a shop so have all kinds of leftover fluids sometimes
so like to find ways to use it up
cutting fluid doesnt have to be anything fancy, as long as it works well
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One Very good Gusmith I knew use to use Mobil 1 for threading because of the finish it provided
this works better than that even
I have found Tractor Hydraulid Trans Fluid works, SO WELL
that I use it exclusively now, I prefer it, I favor it
I am simply spreading the word
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it is slick, adheres to the surface well, and provides a very nice finish
and as I mentioned most importantly, provides long tool life on Carbide
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So if it works well, why not use it? Especially when I have an abundance
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It's cutting fluid man
it doesnt have to have special, Anti-Foam properties, it doesnt have to have an abundunce of ZDDP to last for thousands of miles
We dont need to be gettin OCD on something like cutting fluid if it provides everything needed for the job
Right?
(I use UDT-2 approved for Kubota, which is of much higher quality than the 'Ol $25 per pail "303" crap)
It may sound odd but,
whatever works right
try it sometime
you may be pleasantly surprised
---
I run a shop so have all kinds of leftover fluids sometimes
so like to find ways to use it up
cutting fluid doesnt have to be anything fancy, as long as it works well
---
One Very good Gusmith I knew use to use Mobil 1 for threading because of the finish it provided
this works better than that even
I have found Tractor Hydraulid Trans Fluid works, SO WELL
that I use it exclusively now, I prefer it, I favor it
I am simply spreading the word
---
it is slick, adheres to the surface well, and provides a very nice finish
and as I mentioned most importantly, provides long tool life on Carbide
---
So if it works well, why not use it? Especially when I have an abundance
---
It's cutting fluid man
it doesnt have to have special, Anti-Foam properties, it doesnt have to have an abundunce of ZDDP to last for thousands of miles
We dont need to be gettin OCD on something like cutting fluid if it provides everything needed for the job
Right?
(I use UDT-2 approved for Kubota, which is of much higher quality than the 'Ol $25 per pail "303" crap)
Ummm, no?Ever tried Lucas tractor fluid?
The absolute best thinner for heavy black cutting oil was the original Tap Magic, which was out lawed years ago.Interview with Jim Borden and he hints that some of his health problems might be attributed to cutting oil mixtures. Of course he was using trichloroethylene and that should be a no-no for anyone.
I tried Mobil 1. I couldn't stand the stink.
What do you have the best luck with ?
Super soft and stinky.Downside: the sulfur smell
Upside: contains paraffin , so your hands will be super soft!
I have seen sections of concrete sidewalks and asphalt street removed because a power line transformer leaked oil onto them.The absolute best thinner for heavy black cutting oil was the original Tap Magic, which was out lawed years ago.
I breathed a lot of it. Luckily I have not experienced any ill affects.
I also come from the era where we used a lot of White Lead and Red Lead anti fouling paints.
It’s amazing I have made it to 78.
Downside: the sulfur smell
Upside: contains paraffin , so your hands will be super soft!
The Ridgid thread cutting oils that say low odor, DO NOT have a sulfur smell. I've got Dark and Nu-clear and neither do and they are at least 5 years old.

ATF aint bad, 90 wt gear oil makes me want to BARF!If you can tolerate the smell of automatic transmission fluid, you can tolerate anything.
