methods of detecting glycol in used lubricating oil?

FIRST OFF: My lawyers make me say this warning: Anything dcastos says is all in jest and should not be followed unless backed up in writting by the readers Lawsyer, Doctors, state PE, and other advisors.

Taste it. spit it out and rinse with water. Glycol will taste sweet.

Has your wife agreed with that?..."other advisors"??? Mine sacked the Lawyer, Doctor, PE and instead hired my mother-in-law.
cheers,
gr2vessels

well if its green or red, all bets are off.

ok then...thanks

What about removal of a small amount of glycol(~5%)from used lubricating oil? Anyone?

...and yes dcasto, it did taste sweet...j/k

The vacuum dehydration processes are today the most effective ways of removing the contaminants (including glycol types) from the lubricating oil. There is a whole industry today recycling the used lubrication oil. A plant using a small vacuum pump and a few small stainless steel vessels can recycle and re-generate large volumes of used oils from stationary engines, turbines, long haul transport companies, you name it...
However, if you got 10 gals of contaminated oil, chuck it. Don't taste it, it's horrible..it makes you turn to grapa..
cheers,
gr2vessels