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 solvent or similar ingredients that can be harmful to the fuel system and engine.
See also:
If your vehicle overheats
If your vehicle is overheating (indicated by an
extremely high temperature gauge reading) or if
you feel a lack of engine power, detect abnormal
noise, etc., take the following steps.
WARNING:
...
Anti-freeze
In the winter when it is anticipated that the temperature
will drop below 32°F (0°C), check the
anti-freeze to assure proper winter protection.
For details, see Engine cooling system in the
M ...
Explanation of general maintenance items
Additional information on the following
items with “ * ”is found later in this section.
Outside the vehicle
The maintenance items listed here should be
performed from time to time, unless othe ...