Might be a little late but...

http://www.greengrease.net/

They call it Green Grease? I used it on my front wheel bearings about 40,000 miles ago... hehe... Guess its time to do them again? I have done several deep water crossings since Ive used it. I guess the real test would be to service them again and see what kind of shape things are in.

Its super sticky stuff, I dont think soap even really washes it off. I always had to use brake cleaner.