What's at least as important as what grease to use is how well you clean them, inspect them, and if you find any dings that might hang them up smooth them out with emory cloth and/or a fine file. They gotta be smooth to start with or the grease won't make much difference.
"During times of universal deceit, telling the truth becomes a revolutionary act." ~ George Orwell
1995 1500 Aspencade named "Cochise"
1985 1200 Aspencade named "Tatanka"
IDMWT club #18