HMMM. Grease no grease that's a good question. it does have a zerk I would grease it just to keep it happy if turns into a mess then no but other wise go for it. I do agree with you there most certainly.. but if its moving it needs luberication I am a diesel mechanic on car haulers. We lube our posts,sliders, anything that moves with #1 slip plate from a gallon can its graphite in a paint on form dries pretty quick 15-40 mins?? Its tough as nails some trucks only done once every 6 months and we go in all enviorments: cold, hot, rain, snow, sleet, you name it, 49 states, Canada, Mexico, Purto Rico We are everywhere. How often depends on use and weather conditions etc. Our shop likes to do it ever PM which is 20,000 miles and after a while it does seem to build up in areas that don't see heavy use. it don't rust under it IF its been properly sealed, painted etc. Our owner also went to all sythenic lubericats oil gear lube grease everything -- not cheap stuff either he claims that after switching the trucks see an average of about .2 MPG fuel savings IDk but he pays the bills and we have been it using the stuff for 7 years now..so I guess it works..don't really care