This is the only valve oil I trust for my trumpets. No other oil even comes close to giving my valves the protection I desire and the speed and fluidity of my playing when using this oil is off the charts when compared to other valve oils I've used. I play my trumpets fairly often and find I don't have the necessity to oil my valves as often as I used to compared with other valve oils.
I now wouldn't use any other type or brand of valve oil since switching to Yamaha valve oil.

Rating: [5 of 5 Stars!]