Recently bought a NOE mold and it came with a small sample of BullShop sprue plate lube. Well I got to thinking the guy is a logger by trade and this stuff sure looks exactly like some synthetic oil I have in my shop,so I tried it and it works the same. I casted a couple hundred bullets and it was still working when I quit casting. It cost me about $4 for a 8 oz. bottle and you only need to wet the very tip of the Q-Tip as it goes a long way.

Also wrote the guy and NOE molds and ask where he got the 1 oz. sample bottles the lube came in as I need some for other applications in the reloading and range bag. He sent me this link. The bottles have a .030 hole in the spout and come in 1,2,4,8 and 12 0z. sizes.
http://www.sks-bottle.com/340c/fin26.html