Just been doing a little reading on oil lube trailer hubs. Searched the net for more info (including this forum) but could not find anything newer than about 2003-2003. Anybody have any experiences with oil filled hubs that you care to share? For example, a number of posts mention the concern about rapid lubricant loss if a seal fails or the plastic cap is damaged -- ever really happened to anyone? I am on the verge (as soon as the weather stays above freezing for a while) of changing out the grease in my hubs in favor of the oil filled and would appreciate any advice based on real experience.