Let me preface this by saying that I don't have an antique or vintage machine. I have a new Juki TL2010Q. What is the best, most high quality sewing machine oil to use? I still have oil that came with my machine, but I'm thinking ahead to the time I need more. My local sewing machine guy recommended Tri-Flow, but I'm not sure I trust his advice, since all he had on the shelf was Tri-Flow! The Juki people gave me a part number, but when I looked it up, it wasn't even oil--sigh. I figured that those of you who fix and rebuild machines would be the best experts. Advice, anyone? Thanks for your time;I really appreciate it.