Rem Oil contains a teflon additive and no abbrasives that I know of.
I use whatever the latest high/low temp oils/greases are in vogue or in my stock. Lately that's been Mobil 1 synthetic general purpose automotive chassis lube (grease) and Rem Oil. Find me data on why anything else will actually make any difference for the better on wear in gun lubrication, and I'll switch. Gun lubrication is a low load, low surface speed, and low cycle application and just about anything this side of bacon fat should work fine as long as it isn't used in temps exceeding its performance range, kept clean, and replenished as needed.
BTW, I learned something during a major airplane accident where grease was implicated. Grease has lubricating components that indeed are depleted from use and need periodic replenishment. It's not forever.
So, probably more important than what you use, is how often you use it. Granted, a decent lubricant would have to be used.
