[cttitan]

I ran this by the dealer a while back and they all looked at me like I was nuts. When I pointed it out in the shop manual they said that it sounded ridiculous. They were of little help in resolving the question though other than giving me the 800 number for Nissan customer service.

I called Nissan customer service and after a few days they got back to me. They said that the 3,000 mile change interval was only a recommendation that was put in there to cover any possible towing situation. If you were towing an extreme load under extreme conditions then you might have to change it every 3,000 miles or so.

Bottom line is I came away from all of this with the understanding that under normal conditions that most drivers will be in the recommendations in the owners service manual are just fine.