See also:

Exhaust gas (carbon monoxide)
WARNING: - Do not breathe exhaust gases; they contain colorless and odorless carbon monoxide. Carbon monoxide is dangerous. It can cause unconsciousness or death. - If you suspect that exhaus ...

Exterior
A new dark gray body color is available; it's called Night Armor. The Frontier is only available in King Cab (extended cab) and crew cab body styles with either a 4x2 or 4x4 drivetrain. Tough PR ...

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 ...