I have used La Tromba valve oil - specifically the one with silicone - for over 30 years and have never needed to look for any other. As brass players do, I have used other players valve oil from time to time, but have found nothing that works better than this. I use both on my Flugel regularly, and on my French Horn sparingly - I have found that rotary valves on my Alexandre work best with only very light lubrication (no matter what oil you use - and for me this is the best)