[jhautz]

Stock you dont need any the plastic is slippery enough, and most dont use any even with the streel idlers. I like just a little light grease in mine when I run the steel idler. I just like to a little something in there for the metal to metal of the top gear to the idler. Some say it adds a little resistance to the transmsion, but its so little that there is no way you can tell. At least I cant, not even by hand. Another thing it seems to keep the gears a little quieter. Less gear whine. I like quite.