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 ...

Safety
At this time, the Sentra has not been crash tested by the Insurance Institute for Highway Safety. Standard safety features include antilock brakes with electronic brake-force distribution, active ...

Battery
If the battery is not fully charged during extremely cold weather conditions, the battery fluid may freeze and damage the battery. To maintain maximum efficiency, the battery should be checked reg ...