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Can Pag-46 oil be stored when opened

LH123 on Tue June 02, 2009 2:37 PM User is offline

I have a year old bottle from AMA, need to add a bit, should I get new? Is it hygroscopic?

TRB on Tue June 02, 2009 2:38 PM User is offlineView users profile

I would use new since the bottle has been opened.


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Alphaman on Tue June 02, 2009 2:45 PM User is offline

Use a new one, PAG oil is like brake fluid, hygroscopic( abosbs moisture, you DO NOT WANT MOISTURE in the AC)

bohica2xo on Tue June 02, 2009 3:27 PM User is offline


If it is not DEC PAG, then it is probably wet. Use it for cutting oil, it works great for that. Mix an ounce or two of your old PAG with a pint of water & put it in a trigger sprayer. Keep it near the drillpress...


"Among the many misdeeds of the British rule in India, history will look upon the act of depriving a whole nation of arms, as the blackest."
~ Mahatma Gandhi, Gandhi, An Autobiography, M. K. Gandhi, page 446.

LH123 on Tue June 02, 2009 5:11 PM User is offline

Thanks, will get new, not gonna risk for few bucks.

The cutting oil sounds like a good idea, will make my bits last longer....

Matt L on Wed June 03, 2009 11:15 PM User is offline

If it is DEC PAG, is it safe to use? I've seen the write-up with the frozen non-capped oil, but that wasn't long-term. Do you have any idea how long is too long to keep it around?

jack31ca on Fri June 12, 2009 10:26 PM User is offline

dont the oil turn colour when exposed to air it starts a lite gold and keeps getting darker,


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