Awl --
Seems to be the WD40 of soluble oils, these days.
Good choice? Economical choice? No demanding machining, for a Fadal, 30 gal reservoir.
Cheap sources? Traverse (in NY) wants about $135 for a 5 gal pail. holy shit..... Not a real big per-gallon diff in price between single gallon jugs and 55 gal drums!!!
But the real Q is: Should I add a rust inhibitor? Bacteriacide?
I got an aerator going in the tank, and a skimmer, but I haven't used the skimmer in a while. Mebbe when I get all the old crap out of the tank, wash the tank, and fresh coolant I'll get the skimmer going again.
I'm just finishing up an old (free) supply of KoolMist soluble oil, more for saws, but which the jugs say can be used in VMC's as well. But, I don't think it's the best stuff.
Heh, I'd like to experiment with a non-foaming dishwashing liquid.... in principle, DAT should function like a soluble oil coolant.....