Not from a $ perspective, albeit holy s*it @ the creiminal genuine filter price. More from a fu*ing hell @ filter locations.
Nissan man says every 10 for the td oil burner (no burning oil here) but mighty interwebz suggest every 5 to tickle its fancy for the oils.
But how about the filters is it a wise safe move to swap oil every 5 but filters on every second round (every 10)?