Subaru Outback manuals

Subaru Outback: Non-turbo models

The non-turbo engine is designed to operate using unleaded gasoline with an octane rating of 87 AKI or higher.


 Turbo models

The engine is designed to operate at maximum performance using premium unleaded gasoline with an octane rating of 93 AKI or higher. If 93 AKI fuel is not readily available in your area, unleaded g

 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 p

 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 control sy


 Checking the coolant level

Check the coolant level at each fuel stop. 1. Check the coolant level on the outside of the reservoir while the engine is cool. 2. If the level is close to or lower than the “LOW” level mark, add coolant up to the “FULL” level mark. If the reserve tank is empty, remove the radiator c

 MODE button

This button is used to select the desired audio mode. Each time it is pressed, the mode changes to the next one in the following sequence. *1: The frequency last received in the selected waveband will be displayed. *2: Only when a CD is in the player. *3: Only when an auxiliary audio produc

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