Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

So would you use this blend in your displacement oilers instead of straight steam oil?  I can maybe see why you would blend, or thin, the Steam Cylinder Oil (SCO) for use on bearings and other 100% lubrication loss applications where temperatures are low.  That said, adding machine oil and bio oils to SCO seems to defeat the benefits of SCO. 

SCO is a high viscosity, high quality paraffin base oil usually blended with animal tallow.  It profiles excellent lubrication in high temperature, sliding friction applications.  I’m just not sure I want to play with that.  I will say that I’ve watched a number of Keith’s videos, and I don’t recall him using his blend for the cylinders......maybe I’m wrong there - just don’t recall.