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. See your dealer or a qualified service technician if you use a fuel with the specified octane rating and your vehicle knocks heavily or persistently.

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    Cargo
    The Impreza hatchback has 19 cubic feet of cargo room behind the backseat, which is more than the four-door GTI (14.7) but less than the Vibe (20.1). The cargo floor isn't especially deep, as a go ...

    Head restraint adjustment
    Both the rear window side seats and the rear center seat are equipped with head restraints. WARNING ● Never drive the vehicle with the head restraints removed because they are designed to ...

    Components
    1) Front sub sensor (right-hand side) 2) Front sub sensor (left-hand side) 3) SRS airbag system warning light 4) Frontal airbag module (driver’s side) 5) Front passenger’s frontal airbag ON an ...