spent the day yesterday helping the kid get his new shop up and running...
Ain't no way he'll have it it tight enough to heat 24X7 for a MN winter this year. many years ago, I took old car radiator coolant to use in my old shop - just added oil. Well, 30 years later I guess this is bad form. Will RV antifreeze plus oil work OK in his CNC mill? Other suggestions?
Karl