See also:

Fuel-filler door
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Fuel recommendation
MR20DE and QR25DE engine except Spec-V Use unleaded regular gasoline with an octane rating of at least 87 AKI (Anti-Knock Index) number (Research octane number 91). QR25DE engine Spec-V only Us ...

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 greatest fuel benefit when ther ...