Subaru Forester: 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.
Turbo models
The engine is designed to operate using
premium unleaded gasoline with an
octane rating of 91 AKI (95 RON) or
higher. If premium unleaded gasoline is
not available, regular unleaded gasoline
...
Unleaded gasoline
The neck of the fuel filler pipe is designed
to accept only an unleaded gasoline filler
nozzle. Under no circumstances should
leaded gasoline be used because it will
damage the emission contro ...
See also:
Fuse panel located in the passenger compartment
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Water deposits
The climate control system removes moisture
from the air and deposits the excess water
beneath the vehicle. Puddles may form but this
is normal and is no cause for concern. ...
Read first — then drive safely
Before driving your vehicle, read your Owner’s
Manual carefully. This will ensure familiarity with
controls and maintenance requirements, assisting
you in the safe operation of your vehicle.
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