See also:

Changing engine oil and filter
Change the engine oil and filter according to the maintenance log shown in the NISSAN Service and Maintenance Guide. ...

Air recirculation button
Air recirculation button NOTE: The air recirculation feature is available only on those vehicles equipped with air conditioning. On position (Indicator light on): Interior air is recirculate ...

NISSAN dealer.
However, now and then you may notice light spark knock for a short time while accelerating or driving up hills. This is not a cause for concern, because you get the greatest fuel benefit when ther ...