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:

    Average fuel consumption
    Average fuel consumption 1) U.S.-spec. models 2) Except U.S.-spec. models This indication shows the average rate of fuel consumption since the trip meter was last reset. When either of th ...

    Automatic climate control system (if equipped)
    Although this climate control system can be used as a full-automatic climate control system, it can also, if desired, be used as a semi-automatic climate control system. When it is used as a full-aut ...

    Ride, Handling & Braking
    Employing a car-based four-wheel-independent suspension since its mid-1990s inception, the Outback displays admirable ride quality. It soaks up bumps with little driver disturbance but maintains g ...