Two separate circuits
Your vehicle has two separate circuit brake systems. Each circuit works diagonally across the vehicle. If one circuit of the brake system should fail, the other half of the system still works. If one circuit fails, the brake pedal will go down much closer to the floor than usual and you will need to press it down much harder. And a much longer distance will be needed to stop the vehicle.
See also:
Maintenance precautions
When maintenance and service are required,
it is recommended that all work be
done by an authorized SUBARU dealer.
If you perform maintenance and service
by yourself, you should familiarize you ...
Recommended brake fluid
Refer to “Fluids”.
Never use different brands of brake fluid together. Also, avoid mixing DOT 3 and DOT 4 brake fluids even if they are the same brand. ...
California fuel
If your vehicle was certified to California Emission Standards as indicated on
the underhood tune-up label, it is designed to optimize engine and emission control
system performance with gasoline ...