Quote Originally Posted by JDM61 View Post
... tool users have gotten away from using it because of it's "complex" (translated, marginally unsafe in a commercial environment according to folks like OSHA) oil quench.
My quench tank is at least 15 year old canola oil. MacDonald's et.al. had better look out for OSHA because they've been heat treating fries in dangerous oil then. I do have most of a barrel of Parks oil, but I've never used any of it.