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:
Engine
This spark ignition system complies with the Canadian standard ICES-002. ...
2011 Nissan Maxima review
The large sedan is making a comeback these days and the Nissan Maxima
succeeds because it doesn’t equate lots of interior space to whalelike exterior
dimensions, making it enjoyable to drive.
...
Safety
All-disc antilock brakes with electronic brake-force distribution and brake
assist are standard. Side-impact airbags and side curtain-type airbags that
protect outboard occupants in all three rows ...