At one of the shows we played at The Blue Note in New York City, I left my valve oil back in the hotel room. I borrowed some Ultra-Pure. The valves not only worked great and fast, but I didn't have to oil my valves the rest of the night. For years I've been oiling valves sometimes several times a set. This oil is great for close tolerance valves!
Michael Manthey - Trumpeter, Maynard Ferguson BBN Band