First of all, Blue Juice is a great valve oil. If you are switching to Blue Juice from a non-synthetic valve oil (or from any valve oil, really) then you need to at the very least rinse out your valve casings and valves and let them air dry. You need to get the old oil off of your valves before applying a new one so they don’t intermix and cause your valves to gum up, stick, or corrode. I’ve found that Blue Juice does a great job in protecting from corrosion, in fact, I switched from a non-synthetic because that valve oil was corroding my valves.

Blue Juice works great. I tend to oil my valves once a week, but you could go longer easily, I just don’t chance that as a performer. Over oiling your valves is as bad as under-oiling, so just get a feel for when your valves start to feel a bit sluggish and apply.

I have been using Blue Juice for over one year now with a Yamaha 8310Z trumpet and a Getzen Eterna cornet. I have had no problems at all. I play one to two hours per day minimum. I have seen nothing unusual in any parts of the horns. In fact, I seem to need less of this oil than when I used the Al Cass oil. Of course, I clean my horns periodically with clean water & soap, and a little more often in warm weather. If someone is getting valves stuck, corroded, “gunked” etc., you may want to have a pro technician examine your horn or the way you oil it.

Not only does “Blue Juice” do a better job of oiling your valves, but it also helps keep them clean. This stuff was recommended by my music teacher, and has lasted much longer than any other oil I have used, and without gunky build up.