See also:

Octane rating tips
Using unleaded gasoline with an octane rating lower than recommended above can cause persistent, heavy spark knock. (Spark knock is a metallic rapping noise.) If severe, this can lead to engine damag ...

Spark plugs
WARNING Be sure the engine and the ignition switch are off and that the parking brake is engaged securely. CAUTION Be sure to use the correct socket to remove the spark plugs. An incorrect socket c ...

Exterior
Many of Infiniti's designs are polarizing, falling into either the love-it or the hate-it category. Take the FX and EX, for example. I'm not a fan of the bulbous, jowled FX, but my test EX — in go ...