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[fossilman]

Maybe this topic has been brought up on the forum before..............
What type of cutting oil do you use and why???  I use mineral oil,it's inexpensive,no odor and easy on the hands...
I usually buy it at the local Ranch Supply stores,but like ordering it from a Company in California,that can undercut most Companies on prices....
Free shipping over $50.00 too,so I usually order five gallons...


https://www.scahealth.com/scah/product/ultracruz-mineral-oil-light

[fossilman]

I have a few friends that use diesel for cutting,I can't master the smell of it anymore (LOL),was around it to many years from mechanic to trk driver.......
I have to soak my material I get from them to get the smell off the rocks,before I work them....
But to each his (or) her choice.......
I have heard of some other oils people tried to use and found out it was a huge mistake! LOL Like cooking oil,or used fry oil.........
Most I know use diesel and (or) Mineral oil..... 

[Jhon P]

I wouldn't use diesel. Some oil will vaporize in the saw a good spark and boom! You have a fire. I use lapidary grade rock cutting mineral oil. I buy it from an oil and lubricant distributior that I know, I buy it in a 55 gal drum.  I know a guy that uses anti freeze. He says it works great. It's toxic I don't think it would be safe. I have also heard of people using automatic transmission oil. And kerosene. I wouldn't use anything than that can be flammable or toxic. So I stick to mineral oil that has a low flash rating.

[Allen]

This subject is one with a number of factors.

Safety must come first, diesel could be a problem.

Lubrication of the saw cut next, water based products can break down under heat.

Aroma, cost and ease of clean up including oil recovery follow.

I use medicinal white oil, if its feed to horses it should't hurt me.

But I watch the cost and clean up as well. I add about 25% old transmission/gear box oil, this oil contains settling agents, it is much easier to clean up and generally can be obtained free.

I recycle the oil by filtering through brown paper lunch bags, hang them in plastic bags with holes over tins for a few weeks before disposal. 

[Orrum]

I use mineral oil from Walmart but I add a bottle of baby oil for good smell and a little Bardahl no smoke from a auto parts store to reduce misting.

[Grayco]

This subject is one with a number of factors.

Safety must come first, diesel could be a problem.

Lubrication of the saw cut next, water based products can break down under heat.

Aroma, cost and ease of clean up including oil recovery follow.

I use medicinal white oil, if its feed to horses it should't hurt me.

But I watch the cost and clean up as well. I add about 25% old transmission/gear box oil, this oil contains settling agents, it is much easier to clean up and generally can be obtained free.

I recycle the oil by filtering through brown paper lunch bags, hang them in plastic bags with holes over tins for a few weeks before disposal.

Transmission/gear box oil? As  in SAE 90w gear oil?
I could see maybe adding ATF.  It still has an odor but it is not as bad as gear oil and the viscosity is closer to mineral oil.  That must be what your are talking about, right?

[melhill1659]

@fossilman, I saw an older post about the veterinarian grade mineral oil (possibly from you so thanks). I bought several gallons at a great price from the place you use. It works great! I use it in my 10" saw. It seems a little thick though. I ordered the "light" but light isn't marked on any of the jugs. Does yours say light mineral oil? In my little Genie 8" I use what @Orrum uses. My skin is soft as a baby's bottom and smells good too


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[Allen]

Grayco the oil is a mix, gearbox and transmission from a auto workshop, smell is not there. The white oil which is 75% is thin.

Muck can be removed from the saw sump with a paint scraper.

I live in the tropics, viscosity is no problem. Today's temperatures 25 to 32C (77 to 90F).

[irockhound]

Did you get the oil from Santa Cruz animal health?  I posted about them a while back since I was able to get the Horse laxative oil for 12. per gallon with free shipping from them.