I opened up the sump of the cold saw today and was quite amazed by the accumulation of sediment comprised of old coalesced water soluble oil, with metal chips.
Drained everything and spooned the goop out as well, and made a new mix with new oil, but I am concerned about this crap in the sump.
Specifically, will the oil solution (which looks like fat free milk) eventually separate if the saw is not used often?
Should I replace the oil periodically? (which is dirt cheap)