Joe, I find if we're parked long term I have one that will leak, if I wipe off, spray it with silicone spray & run it in & out it will stop. I found that when it won't stop leaking that it's MUCH cheaper to have it rebuilt ($100-150) than replaced ($500-600). I top off my reservoir with 15w motorcycle fork oil. That's what I do, see what others recommend.
Danny & Linda
Former '13 FB owner