2005 Nissan Maxima Owner's Manual - Page 258

2005 Nissan Maxima Manual

Page 258 highlights

or deposit removal may contain active solvents or similar ingredients that can be harmful to the fuel system and engine. greatest fuel benefit when there is light spark knock for a short time under heavy engine load. Octane rating tips Using unleaded gasoline with an octane rating lower than recommended can cause persistent, heavy "spark knock." ("Spark knock" is a metallic rapping noise.) If severe, this can lead to engine damage. If you detect a persistent heavy spark knock even when using gasoline of the stated octane rating, or if you hear steady spark knock while holding a steady speed on level roads, have a NISSAN dealer correct the condition. Failure to correct the condition is misuse of the vehicle, for which NISSAN is not responsible. Incorrect ignition timing may result in spark knock, after-run and/or overheating, which may cause excessive fuel consumption or engine damage. If any of the above symptoms are encountered, have your vehicle checked at a NISSAN dealer. However, now and then you may notice light spark knock for a short time while accelerating or driving up hills. This is not a cause for concern, because you get the 9-4 Technical and consumer information

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ordepositremovalmaycontainactivesolventsor
similaringredientsthatcanbeharmfultothefuel
systemandengine.
Octaneratingtips
Using unleaded gasoline with an octane
ratinglowerthanrecommendedcancause
persistent, heavy “spark knock.” (“Spark
knock” is a metallic rapping noise.) If se-
vere,thiscanleadtoenginedamage.Ifyou
detectapersistentheavysparkknockeven
when using gasoline of the stated octane
rating, or if you hear steady spark knock
while holding a steady speed on level
roads, have a NISSAN dealer correct the
condition. Failure to correct the condition
ismisuseofthevehicle,forwhichNISSAN
isnotresponsible.
Incorrect ignition timing may result in spark
knock, after-run and/or overheating, which may
cause excessive fuel consumption or engine
damage. If any of the above symptoms are en-
countered, have your vehicle checked at a
NISSANdealer.
However, now and then you may notice
light spark knock for a short time while
acceleratingordrivinguphills.Thisisnota
cause for concern, because you get the
greatest fuel benefit when there is light
spark knock for a short time under heavy
engineload.
9-4
Technicalandconsumerinformation