I have my dealership change my oil. I use Nissan Ester Oil 5W-30. It is the recommended oil by Nissan. It doesn't mean you have to use it, just recommended.
When I bought my car, I negotiated a 12 month service package which includes a whole year of oil changes. I plan on changing my oil every 3 months, basically every quarter. Hey it's free!!
When the service package ends, I will either be using Redline or Amsoil and change the oil myself. Will be using Purolator Pure One Oil Filter. Again, use the search and investigate for yourself.
Just use a high end Synthetic Oil with High Grade Filter and you will be good.