Hy-Gard Shelf Life (Opened Bottle)

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Would anyone have concerns about using an old bottle of low viscosity Hy-Gard (J20D) that was opened (and re-capped) many years ago? Has been stored in a shed exposed to extreme summer and winter temperatures.
 
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Originally Posted by Linctex
If there's no visible water in it, it's fine
Good. The cap has been screwed on pretty well, so no dust or water.
 
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Originally Posted by Lubener
I wouldn't hesitate using even a 10+ year old opened and tightly sealed bottle at all. Done it.
Thanks for your input. I wonder if the same holds true for a 5-gallon bucket of Hy-Gard, due to the additional surface area of oil exposed to air inside the bucket, and also the questionable seal on those buckets with the pour spout on top.
 
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I wouldnt worry about it. Its not hygroscopic

look how long that fluid lasts in use. are you telling me sitting in a bucket is harder on it?

now 10 year old bucket that survived a flood under muddy water or something.. ok.
 
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