Posted by John Wright on August 06, 2000 at 10:02:23:
In Reply to: Synthetic Oils posted by Jay Bertolet on August 04, 2000 at 21:57:25:
Have you tried BiNaK 495. It's a mineral oil that does not evaporate, works in all temperatures, and works on both piston, rotary valves and slides. Best valve oil I've ever tried.