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 eng ...

Tire Pressure Monitoring System (TPMS) (if so equipped)
Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle placard or tire ...

Exterior
I find the Sentra peculiar-looking, but you can form your own opinion. As for the SE-R and SE-R Spec V variants, they have unique side sill extensions and deeper front and rear bumpers to match. A ...