[Shop-talk] gear vs bar oil

[old dirtbeard]

Not an effective response to your question, but perhaps helpful, I have
been using used vegetable cooking oil for my bar lube for quite a few years
and it has worked well. It seems "stickier" than motor oil and does not
tend to fly off as easily.

I read a link on it many years ago and started using it after I started
deep frying turkeys for Thanksgiving and had gallos of the stuff around.
Here are a couple different links about why using vegetable oil:

FWIW...

https://learn.eartheasy.com/articles/using-vegetable-oil-to-replace-chainsaw-oil/#:~:text=Effective%20%E2%80%93%20Vegetable%20oils%20have%20natural,or%20bar%20wear%20over%20time
.

https://www.thetoolyard.com/2019/03/can-i-use-vegetable-oil-for-lubricating.html

best,

doug

On Mon, May 29, 2023 at 10:54 AM Brian Kemp <bk13 at earthlink.net> wrote:

> I'm interested as well, but from a 10w40 perspective leftover from a
> previous car.
>
> From https://www.oildepot.ca/what-is-the-viscosity-of-bar-and-chain-oil/
> and https://www.remodelormove.com/what-viscosity-is-bar-and-chain-oil/ it
> appears bar oil is about 30W, so my first though was gear oil might be too
> thick.
>
> One quote from the first link:
>
> Can Motor Oil Be Used As Bar And Chain Oil?
>
> "Can you take a 30-weight motor oil and use it as a bar and chain oil?
> This is not a good idea. Bar and chain oils have additives called
> “tackifiers”. These additives prevent chainsaw oil from flinging off during
> high-speed operation. The tacky oil clings to the bar and chain links to
> prevent dry operation."
>
> I kept looking and found
> https://toolspulse.com/what-can-i-use-for-chainsaw-bar-oil/ which equates
> ISO weights with SAE weights:
>
> "SAE 30 oil is equivalent to ISO 100 grade bar oils, SAE 40 is identical
> to ISO 150 bar oils..."
>
> The above link also contains a viscosity chart that included SAE gear oil,
> which also appears to be yet another scale, adding to the confusion.
>
> Brian
>
>
>
> On 5/28/2023 1:23 PM, eric at megageek.com wrote:
>
> OK great minds of the internets, quick question...
>
> I use a lot of bar oil since I cut trees.
>
> I have lots of different gear oils that I will most likely not need.  In
> many cases, I needed a few ounces and had to buy a gallon of it.
>
> My question is, can I 'mix' some of the gear oil in with the bar oil?  If
> so, what would be a max ratio?  I want to use up the gear oil and get rid
> of these huge containers, but I figure this would be a good way.
>
> Any other places I can mix it?  I don't think I would try it in hydraulic
> fluid.
>
> So, what's the collective wisdom say here?
>
> Thanks.
>
> Moose
>
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-- 
Best,

Doug
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