Posted by don't mix syn petr on February 24, 2004 at 12:51:40:
In Reply to: Re: first valve slide issues... posted by Hetman on February 24, 2004 at 01:59:47:
I have used the hetman exclusively on one of my horns with success. However I have also been told that if you are using a petroleum based oil, they should not be mixed with the synthetic oils such as Hetman.
Ralph