When I bought my Murano my salesperson suggested that, even though the service manual states that the first oil change is supposed to occur at about 3,750 miles, I should change the oil at 1,000 miles the first time. He said that because of the conditions in the manufacturing plant some metal shavings and other dirt could be circulating in the first batch of oil and that I should get it out of there as soon as possible. I have a little over 1,200 miles on it now and I'm wondering if I should take his advise. I've only had the car for about a month and I don't want to take it in for service yet but if what he said is true I'm thinking maybe I should. Has anyone else done this?