Please ignore majid_sabet he is a complete moron and has no knowledge of climbing theory. Depending on what type of grease it was you may be ok. However I suggest contacting the manufacturer as others have suggested. If you retire the rope I suggest sending it to the manufacturer or some other manufacturer in the USA to have it drop tested in accordance with the UIAA standards so you know if the grease was actually damaging or not. It always fun to know if a so called "damaged" product can still hold up to UIAA standards.
(This post was edited by USnavy on Sep 15, 2008, 5:26 AM)