Owner's Manual
Page 220
...the fuel system and engine. Incorrect ignition timing may result in spark knock, after-run and/or overheating, which are encountered, have a NISSAN dealer correct the condition. This is not a cause for a short time while accelerating or driving up hills. damage. If any aftermarket... fuel additives (for example, fuel injector cleaner, octane booster, intake valve deposit removers, etc.) which may notice light spark knock for concern, because you get the greatest fuel...
...the fuel system and engine. Incorrect ignition timing may result in spark knock, after-run and/or overheating, which are encountered, have a NISSAN dealer correct the condition. This is not a cause for a short time while accelerating or driving up hills. damage. If any aftermarket... fuel additives (for example, fuel injector cleaner, octane booster, intake valve deposit removers, etc.) which may notice light spark knock for concern, because you get the greatest fuel...