Subaru Outback 2006 Manual page 437

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Fuel:
! 2.5-liter non-turbo models
Use only unleaded gasoline with an octane rating of 87 AKI or
higher.
! 2.5-liter turbo models
Use premium unleaded gasoline with an octane rating of 91 AKI
or higher. For temporary purposes if premium unleaded
gasoline is not available, you may use regular unleaded
gasoline with an octane rating of 87 AKI or higher. For optimum
engine performance and driveability, it is required that you use
premium grade unleaded gasoline.
! 3.0-liter models
Use unleaded gasoline with an octane rating of 91 AKI or
higher. Regular unleaded gasoline with an octane rating of 87
AKI or higher may be used. However for optimum engine
performance and driveability, it is recommended that you use
91 AKI or higher grade unleaded gasoline. You may experience
reduced output, poor accelerator response, and reduced fuel
economy when using gasoline with an octane rating lower than
91 AKI, depending on your driving habits and conditions. If you
experience any of these conditions while using a lower octane
GAS STATION REFERENCE
rated fuel, you may want to return to using 91 AKI octane rated
fuel as soon as possible. Additionally, if your vehicle knocks
heavily or persistently, or if you are driving with heavy loads
such as when towing a trailer, the use of 91 AKI or higher grade
unleaded gasoline is required.
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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). Refer to
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Fuel capacity:
16.9 US gal (64 liters, 14.1 Imp gal)
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Engine oil:
Use only API classification SM with the words "ENERGY
CONSERVING" and the ILSAC certification mark (starburst
mark) displayed on the container.
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Engine oil capacity:
2.5-liter models: 4.2 US qt (4.0 liters, 3.5 Imp qt)
3.0-liter models: 5.8 US qt (5.5 liters, 4.8 Imp qt)
Black plate (2,1)
"
Fuel" section in this manual.
s07aa
北米Model "A2440BE-A" EDITED: 2006/ 11/ 29