Fuel octane rating

This octane rating is the average of the Research Octane and Motor Octane numbers and is commonly referred to as the Anti Knock Index (AKI).

Using a gasoline with a lower octane rating can cause persistent and heavy knocking, which can damage the engine.

Do not be concerned if your vehicle sometimes knocks lightly when you drive up a hill or when you accelerate. Contact your SUBARU dealer if you use a fuel with the specified octane rating and your vehicle knocks heavily or persistently.

    See also:

    Safety
    As mentioned, the Outback boasts excellent crash-test ratings and a better rollover rating than an SUV. The standard stability system automatically means there's antilock braking and traction cont ...

    Drive belts
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    Meter needles/gauge illumination setting (models with type A combination meter)
    When the setting is activated or deactivated, the meter needles and gauge illuminate and turn off as follows. Activated: When the driver’s door is opened while the ignition switch is in the “L ...