Posted by Mark F. on February 26, 2002 at 20:39:31:
In Reply to: PRO-OIL posted by Billy M. on February 26, 2002 at 19:31:00:
I used to use it, but I stopped when I thought the dye residue was building up on the valves of my euph. No proof that it was the oil causing it, but i never had the problem again after I switched to a synthetic oil.