The guys got in here and added.. Point is we are dealing low volume.. Have added a extra burden with a conversion to a Prevost leveling system by adding a Auxillary Compressor (more volume) then more and more air operated items.. Age + volume+ lack of regular maintance+ Nice sunny salty beach air–Hot dry desert+ Mountain snow+-40 SKI resort Sitting in hot sun 120F==harsh conditions…My personal use in a situation is a few drops ahead a flow in a open line ahead of a valve/air wiper etc of air tool oil.If it don’t work a second app cost little and will do not further damage. I will leave it at that. I have added a axulliary dryer and ck valve before my aux air enters the coach system as not to effect the Norgren dryer intended to protect the level low system only..Sorry for any confusion….