See also:

Readiness for inspection/maintenance (I/M) test
Due to legal requirements in some states and Canadian Provinces, your vehicle may be required to be in what is called the ready condition for an Inspection/Maintenance (I/M) test of the emissi ...

FM radio reception
Range: FM range is normally limited to 25 30mi (40 48 km), with monaural (single channel) FM having slightly more range than stereo FM. External influences may sometimes interfere with FM stat ...

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 ...