Aftermarket fuel additives
NISSAN does not recommend the use of any aftermarket fuel additives (for example, fuel injector cleaner, octane booster, intake valve deposit removers, etc.) which are sold commercially. Many of these additives intended for gum, varnish or deposit removal may contain active solvents or similar ingredients that can be harmful to the fuel system and engine.
See also:
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
...
Freeing a frozen door lock
To prevent a door lock from freezing, apply deicer
through the key hole. If the lock becomes
frozen, heat the key before inserting it into the key
hole or use the remote keyless entry function on
...
Preventing the Intelligent Key from being left in
the vehicle
If you lock all doors using the power door lock
switch with the Intelligent Key in the vehicle, all of
the doors unlock immediately and the buzzer will
warn you when the door is closed. ...