Have been a 3 n 1 man for over 50 year's, Why I never use anything else , well it's been tested all thru the years being a household name from just a hinge quieter to Pneumatic tool lube. I use 3 in one in all my auto feeder's to keep my pneumatic tool's working great. Here in the south where the humidity is high moisture can damage your tools is the reason to use 3 in one to keep your tools working free of rust, gum and sludge. And never change to other brand's because there made different and can cause the O ring's to break down and damage your tools. Keep plenty on hand, 3 in oil will never let you down.