Recommended grade and viscosity
Each oil manufacturer has its own base oils and additives. Never use different brands together. For details, refer to “Manual transmission, front differential and rear differential gear oil”.
See also:
System monitors
A diagnostic system continually monitors the readiness of the seatbelt pretensioner while the vehicle is being driven. The seatbelt pretensioners share the control module with the SRS airbag system.
...
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 ...
Tire chains
Tire chains cannot be used on your Impreza, WRX and STI because of the lack of clearance between the tires and vehicle body. ...