Tri-Flow will harden like epoxy? Is Break Free a superior lubricant to motor oil? Can anyone cite specific data comparing the lubricity of WD-40 to 3 in 1 oil? It is not difficult to state a personal opinion but it can be difficult to support that opinion with facts.
My opinion: Any oil will work well as long as it remains clean. The very best oil does a poor job protecting the gun if the oil is dirty.