VQ25HR engine

INFINITI recommends the use of unleaded premium gasoline with an octane rating of at least 91 AKI (Anti-Knock Index) number (Research octane number 96).
If unleaded premium gasoline is not available, you may use unleaded regular gasoline with an octane rating of at least 87 AKI number (Research octane number 91), but you may notice a decrease in performance.
See also:
Call volume
Adjusting the incoming or outgoing call volume may improve clarity if reception between callers is unclear.
● Incoming call—adjusting this setting allows you to hear a difference in volume. ...
Initialization
When the ignition switch is pushed to the ON position, INFINITI Voice Recognition is initialized, which may take up to one minute. When completed, the system is ready to accept voice commands. If the ...
Chrome parts
Clean all chrome parts regularly with a nonabrasive chrome polish to maintain the finish. ...
