Does anyone know where I can get hydraulic cylinder piston covers? I've seen them around the interweb somewhere, but can't seem to locate them now.Has anyone ever used these? Might they cause more problems, because of condensation,than they are meant to resolve/ protect? I have a snowplow that's going to have to weather outside for a while. I used to keep a light coat of grease on my old snowplow cyls. pistons and it never seemed to hurt the seals,but I'm looking for something more permanent.