Octane rating tips

Octane rating tips  - Fuel recommendation - Capacities and recommended fuel/lubricants - Technical and consumer information - Infiniti G Owners Manual - Infiniti G

Using unleaded gasoline with an octane rating lower than recommended above 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 an INFINITI retailer correct the condition. Failure to correct the condition is misuse of the vehicle, for which INFINITI is not responsible.

Incorrect ignition timing will result in knocking, after-run or overheating. This in turn may cause excessive fuel consumption or damage to the engine. If any of the above symptoms are encountered, have your vehicle checked at an INFINITI retailer or other competent service facility.

However, now and then you may notice light spark knock for a short time while accelerating or driving up hills. This is no cause for concern, because you get the greatest fuel benefit when there is light spark knock for a short time under heavy engine load.

CAUTION
• Your vehicle is not designed to run on E- 85 fuel. Using E-85 fuel in a vehicle not specifically designed for E-85 fuel can damage fuel system components and is not covered by the INFINITI new vehicle limited warranty.
• E-85 is a mixture of approximately 85% fuel ethanol and 15% unleaded gasoline.
• U.S. government regulations require ethanol dispensing pumps to be identified by a small, square, orange and black label with the common abbreviation or the appropriate percentage for that region.

    See also:

    Menu control switch (models with navigation system) or audio tuning switch (models without navigation system)
    While the display is showing a MAP (navigation systems only), STATUS or Audio screen, tilt the switch upward or downward to select a station, track, CD or folder. For most audio sources, tilting the s ...

    Rear-facing child restraint installation using LATCH
    Refer to all Warnings and Cautions in the “Child Safety” and “Child Restraint” sections before installing a child restraint. Follow these steps to install a rear-facing child restraint in the 2nd r ...

    Interior light
    When the ON switch 1 is pressed, the footwell lights, step lights, map lights and rear personal lights will automatically turn on and stay on for a period of time when: ● The doors are unlock ...