Recommended grade and viscosity

Use only engine oil with the recommended grade and viscosity.
Refer to “Engine oil”.
NOTE
Engine oil viscosity (thickness) affects fuel economy. Oils of lower viscosity provide better fuel economy. However, in hot weather, oil of higher viscosity is required to properly lubricate the engine.
See also:
A Larger, Classier Cabin
At a time in automotive history when vehicles' shoulder lines are getting
high enough to make a submariner claustrophobic, the 2012 Impreza is more like a
skiff. The 2012's windowsills are almost ...
AUTO button
FULL AUTO mode operation:
When the “AUTO” button is pressed, the indicator light “FULL AUTO” on the display
illuminates. In this state, fan speed, airflow distribution, air-inlet control,
and a ...
SRS airbag system monitors
Turbo models
Non-turbo models
A diagnostic system continually monitors the readiness of the SRS airbag system (including front seatbelt pretensioners) while the vehicle is being driven. The SRS airb ...
