After about five years of using Yamaha Synthetic (light) valve oil, I've now switched to "Blue Juice". The reason I switched is I'm trying to figure out what is causing a build up of a white or yellow gunk like substance that shows up in the 1st and 2nd valve slides. This is the second time I've noticed that a note fingered 1-2 has sounded stuffy compared to just 3rd valve fingering. When I looked into my slides I found a build up of white or yellow gunk in 1 and 2. After cleaning out the slides the tone of 1-2 fingered notes was the same as 3 again. (Note: Just three months ago I had my horn ultrasonically cleaned.) This buildup happened once before and I thought it was the slide grease I was using so I switched. The yellow gunk is similar to what many have reported seeing when using Hetman's valve oil -- but on their valves. I can see some white or yellow gunk on the valve ports using Yamaha Synthetic, but it was never as bad as with Hetman's.
We'll see how this goes. So far Blue Juice is working fine. It's cheaper too, so that's a good thing.
We'll see how this goes. So far Blue Juice is working fine. It's cheaper too, so that's a good thing.
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