Recommended brake fluid
Subaru Impreza / Subaru Impreza Owners Manual / Maintenance and service / Brake fluid / 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.
See also:
Fuel
Use of a fuel which is low in quality
or use of an inappropriate fuel
additive may cause engine damage. ...
Refueling
Only one person should be involved in refueling. Do not allow others to approach
the area of the vehicle near the fuel filler pipe while refueling is in progress.
Be sure to observe any other preca ...
Engine overheating
Never attempt to remove the radiator cap until the engine has been shut off and has fully cooled down.
When the engine is hot, the coolant is under pressure. Removing the cap while the engine is ...
