Any recommended maintenance for weather sealing??

Does anyone know if Olympus has any recommended procedures or service bulletins to maintain the weather sealing on their systems?

It was one of the reasons I went with the E-3 and my lenses at the time but with any sealing systems, gaskets and o-rings dry out and eventually need replacement.

I haven't seen anything on the subject but my E-3 is five years old now and was thinking it would be good to look into it before rather than after an incident.

Thanks for any insights

Dave