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Post by pauls on Jan 6, 2015 20:09:28 GMT -5
I scored a drum of good used automatic transmission oil which I was going to use to fire my backyard foundry, at around the same time I was in need of new oil for my saw so it didn't take too many brain cells to make a connection.
It works, it seems to have good lubricating properties, doesn't stink or make mist and washes off stones reasonably easily. And when its time to replace it I can still burn whats left in my foundry, perfect.
Compared to the cost of the normal cutting oil this stuff is way cheaper too, $0 dollars is a quite reasonable cost I think.
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Fossilman
Cave Dweller 
Member since January 2009
Posts: 20,723 
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Post by Fossilman on Jan 6, 2015 20:11:54 GMT -5
How is it on your hands and (or) skin???
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QuailRiver
fully equipped rock polisher
Member since May 2008
Posts: 1,640
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Post by QuailRiver on Jan 6, 2015 21:45:40 GMT -5
The price was certainly right! Some lubricants can get nasty in mist form when breathed. Not saying that transmission fluid is one of them but just to be safe I'd try to find out how the manufactures' MSD sheets rate it for health issues before I used it for sawing.
Larry C.
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Post by Rockoonz on Jan 6, 2015 22:33:18 GMT -5
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Fossilman
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Member since January 2009
Posts: 20,723
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Post by Fossilman on Jan 6, 2015 22:41:35 GMT -5
I'll stick to my mineral oil.......Thumbs up
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Post by kap on Jan 6, 2015 22:50:41 GMT -5
Not good for you or your saw!
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Post by pauls on Jan 6, 2015 23:11:27 GMT -5
Thanks rockoonz for that link,
Ah well, it looks like the oil goes back to being foundry fuel.
That light mineral oil costs an arm and a leg here, I thought I was on to something.
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panamark
fully equipped rock polisher
Member since September 2012
Posts: 1,343
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Post by panamark on Jan 7, 2015 8:15:58 GMT -5
is transmission oil safe to burn (or good for environment)?
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spiritstone
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Member since August 2014
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Post by spiritstone on Jan 7, 2015 8:27:17 GMT -5
I know a few people that like to use cannola oil. "cooking oil" is the stuff unsafe? Makes your cuts smell like frenchfries.  |
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Fossilman
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Member since January 2009
Posts: 20,723
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Post by Fossilman on Jan 7, 2015 11:25:20 GMT -5
If a person can find the post we had on this very discussion a few months ago,it would give another education for us all.......
I use mineral oil from recycled oil from the electrical transformers,they use for big power...
Most places that rebuild the transformers,might sell it on the side...I pay $20.00 for five gallons...Works great,no health risks involved either...
You supply your own bucket...
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Post by johnjsgems on Jan 7, 2015 12:13:57 GMT -5
Any vegetable based oil will go rancid pretty fast. Most will hold sludge in suspension so get thicker with cutting. Transformer oils are very pure and should work well as long as they are not out of the older transformers that used oils with carcinogenic PCB's. Best to check MSD sheets particularly health risks, flash points, and viscosity. Good saw oil has to be very thin, high flash point, easy to wash off, able to settle out sludge. Low or no odor is a plus. Most hobby cutters don't buy enough oil to worry about saving money at the risk of their health or safety.
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Tommy
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Post by Tommy on Jan 7, 2015 13:59:29 GMT -5
That light mineral oil costs an arm and a leg here, I thought I was on to something. is still the best source of mineral oil we've found. It's down to $12 per gallon if you buy four and I think still free shipping over $50 order. |
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Deleted
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Member since January 1970
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Post by Deleted on Jan 7, 2015 14:13:43 GMT -5
I just pay $11 a gallon at my local feed store. It's horse laxative. No waiting, sales tax extra, YMMV...
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jamesp
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Member since October 2012
Posts: 36,612
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Post by jamesp on Jan 7, 2015 15:05:28 GMT -5
I still use kerosene w/25 % 10W-40 and smell like it LOL. It is a fine saw lube though. Some say it is explosive, the oil may reduce the flash point.
But it smells. After a month in the Georgia sun it is fine, which is where the rocks lay till the smell goes away.
I burn it when done and it takes a torch to get to burn. It is the vapor that can burn. Residue is like white talc powder.
Damn Scott, that is one ugly avatar
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Deleted
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Post by Deleted on Jan 7, 2015 15:31:40 GMT -5
Damn Scott, that is one ugly avatar ain't it so?!?!?! |
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QuailRiver
fully equipped rock polisher
Member since May 2008
Posts: 1,640
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Post by QuailRiver on Jan 7, 2015 16:18:16 GMT -5
If a person can find the post we had on this very discussion a few months ago,it would give another education for us all....... I use mineral oil from recycled oil from the electrical transformers,they use for big power... Most places that rebuild the transformers,might sell it on the side...I pay $20.00 for five gallons...Works great,no health risks involved either... You supply your own bucket... I used to use used transformer oil too and liked it. But our local power company won't sell it to their power customers anymore. Instead I was told they are selling it all to China now. Larry C. |
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panamark
fully equipped rock polisher
Member since September 2012
Posts: 1,343
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Post by panamark on Jan 7, 2015 16:37:31 GMT -5
If a person can find the post we had on this very discussion a few months ago,it would give another education for us all....... I use mineral oil from recycled oil from the electrical transformers,they use for big power... Most places that rebuild the transformers,might sell it on the side...I pay $20.00 for five gallons...Works great,no health risks involved either... You supply your own bucket... I used to use used transformer oil too and liked it. But our local power company won't sell it to their power customers anymore. Instead I was told they are selling it all to China now. Larry C. hah! they send us melamine in dogfood so we send them pcb's in the transformer oil. |
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QuailRiver
fully equipped rock polisher
Member since May 2008
Posts: 1,640
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Post by QuailRiver on Jan 7, 2015 16:52:01 GMT -5
I used to use used transformer oil too and liked it. But our local power company won't sell it to their power customers anymore. Instead I was told they are selling it all to China now. Larry C. hah! they send us melamine in dogfood so we send them pcb's in the transformer oil.  Sounds fair! But actually pcb's have been banned from transformer oil in the U.S. since the 1970s or 80s. Now they just use an Industrial/Food grade Mineral Oil like what is used to lube food processing equipment. So now when those power transformers blow or leak they don't poison the local creeks and ground water. Larry C. |
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Post by MrP on Jan 7, 2015 20:05:23 GMT -5
hah! they send us melamine in dogfood so we send them pcb's in the transformer oil. Sounds fair! But actually pcb's have been banned from transformer oil in the U.S. since the 1970s or 80s. Now they just use an Industrial/Food grade Mineral Oil like what is used to lube food processing equipment. So now when those power transformers blow or leak they don't poison the local creeks and ground water. Larry C. I work for a small utility and part of my responsibility is working with transformers and the waste oil from them. For starters it is true that PCB's have not been used for years but there are many thousands of transformers, regulators, etc. out there that are contaminated with PCB's. They found out rather early, relatively speaking that PCB's were not good but rather then throw the oil away they decided to mix it with new oil to bring the ppm (parts per million) down to 'safe' levels. These 'safe level' transformers were manufactured for many years. Transformers that contain greater then 500 ppm are a paperwork nightmare. They have to be sent in-whole to a certified place to be disposed of. Lots of money and paperwork kept forever. Greater then 50 ppm but les the 500 ppm are not as bad but still have to be handled in the proper manner. They have to be removed from the system if anything happens to them. We can drain the oil, completely, and the transformer can be refurbished by a certified rebuilder. The oil has to be sent to a certified disposal facility. The cost is still not cheap but is a lot less then having to pay for the oil and transformer. Our standard is 0 ppm because the industry believes the standard will be lowered again so why take the chance again. The cost of disposal just keeps going up. That being said some utilities want 'proof' that all of there oil has been handled properly so they contract with a certified disposal facility to handle all of there transformers, regulators, etc. The only paperwork is from the disposal company stating the received said oil, transformer, etc. The responsibility is on that company then, and not the utility. I am sure the good company's do the 'right' thing but those on the edge maybe not so much. I would think that any utility that gives or sells there oil has had it tested and it is at 0 ppm or they are taking a huge risk!...............MrP |
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QuailRiver
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Post by QuailRiver on Jan 8, 2015 2:09:29 GMT -5
[/quote]...That being said some utilities want 'proof' that all of there oil has been handled properly so they contract with a certified disposal facility to handle all of there transformers, regulators, etc. The only paperwork is from the disposal company stating the received said oil, transformer, etc. The responsibility is on that company then, and not the utility. I am sure the good company's do the 'right' thing but those on the edge maybe not so much.
I would think that any utility that gives or sells there oil has had it tested and it is at 0 ppm or they are taking a huge risk!...............MrP
[/quote]
Interesting! Makes me wonder if that may have played role in our local Power Company's decision to only sell to China. Maybe the Chinese don't mid a few ppm of PBCs in their oil.
Larry C.
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Sounds fair! But actually pcb's have been banned from transformer oil in the U.S. since the 1970s or 80s. Now they just use an Industrial/Food grade Mineral Oil like what is used to lube food processing equipment. So now when those power transformers blow or leak they don't poison the local creeks and ground water.
