I lube the slide and rail with NAPA sil glyde. Basically pure silicone grease. Springs, mags and rear piston unit, I just spray with silicone oil. Occasionally, I take apart the hammer and sears and lube with sil glyde. If you are using Green Gas, there is enough silicone content to lube the internal piston unit. If you are using propane, I suggest mixing 1000 weight silicone oil into the adapter.