What are the rest of you using to grease your mower deck spindles? The manual for my JD D140 simply states "NLGI #2," but that still leaves a lot of options. I can't recall what I used for the first four seasons, but it was blue. I've started off this season with Lucas Rend and Tacky. Some of the other forums suggest a lithium grease, others don't. At least one forum mentioned that the bearings were sealed and that it really didn't matter. Why would the manual say to grease the spindles ever 25 hours if it didn't matter?