Adjustable level of each volume
Subaru Impreza / Subaru Impreza Owners Manual / Audio / Hands-free system (if equipped) / Using the Hands-free system / Adjustable level of each volume

See also:
Displaying radio PS (Program Service Name) and RT (Radio Text)
...
Fuel
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Engine oil
NOTE
- The engine oil consumption rate is
not stabilized, and therefore cannot be
determined until the vehicle has traveled
at least several thousand miles
(kilometers). Even after break-in, ...
