Jack Devine

My Feedback: (6)

If you use refrigeration oil make sure it is mineral oil. Some of the new systems use PAG oil and some an ester based oil and I would not recommed either of those. The rubber O-rings that are used with PAG oil have to be nitril rubber but the standard mineral base oil is compatable with the buytal rubber orings that are used in retracts.

pittsdriver

My Feedback: (7)

I use Marvel Mystery Oil. Good for o-rings and an excelent lubricant. I use it in my full size Nanchang CJ-6 as all of the systems are air driven and it works great. Its only a couple of bucks a quart and that goes a looooong way. Don