Cleaning and lubing the M1?

First of all, be sure the rifle is de-greased and the bore is clean. Lube the rifle as you would any other rifle.

Next, use grease (from those little cups) on key contact points -- where the op rod rubs against the bottom of the bore, on the caming surfaces of the bolt, and on the back of the bolt where it rubs against the receiver.

After firing, clean the bore as with any rifle. If you're not firing the rifle again for a while, wipe the grease off, lest it collect grit and grime, and re-grease the next time you shoot.

http://www.odcmp.com/Services/Rifles/care_and_cleaning_of_your_m1.htm

rcmodel

You can use almost any kind of good grease on the M-1--there are better (cleaner) white lithium greases nowadays--but those little yellow-capped cups are just so darn handy!

Here you go. White lithium grease works great. Lubiplate from Home Depot or Lowe's.

Of course you can buy Super_Duper Gun Grease for fifty times the cost of the Lubriplate if it makes you feel better.

Steve