Synthetic grease recommendation

[IIA]

Can someone recommend a good synthetic grease? I'm rebuilding my wiper motor. RN recommends Permatex (here: http://www.roversnorth.com/info/49 ). But I can't find it anywhere. Is lithium grease the same thing?

[Jim-ME]

I used Miltech grease (http://www.militec-1.com/) and it seemed to work quite fine.
Jim

[stomper]

My wiper motors are also assembled with Miltec. 2 years with no issues.