Posted by Billy M. on April 07, 2002 at 19:27:32:
In Reply to: Valve Oil: Synthetic or Not? posted by Rob on April 07, 2002 at 19:18:01:
I was reading and learned something about some of the oils you labelled. Al Cass is a petrolium solvent which actually evaporates quickly. Blue Juice and Hetmann's are both petroleum distillates which don't evaporate as quickly and keep pistons moving smooth. I prefer Blue Juice myself, but that's opinionated. I've heard Binak495 works welll too, but after a few months it collects up as gunk in the piston casing and the entire tuba gets the bath for it.
Hope this helps,