Nissan Altima
Nissan Altima

See also:
Octane rating tips
Using unleaded gasoline with an octane
rating lower than recommended can cause
persistent, heavy “spark knock.” (“Spark
knock” is a metallic rapping noise.) If severe,
this can lead to ...
Adjustment
Adjust the head restraint so the center is level
with the center of the seat occupant’s ears.
To raise the head restraint, pull it up.
To lower, push and hold the lock knob and push
the he ...
