See also:

Washing the underbody
Chemicals, salts and gravel used for deicing road surfaces are extremely corrosive, accelerating the corrosion of underbody components, such as the exhaust system, fuel and brake lines, brake ...

Recommended clutch fluid
CAUTION Never use different brands of clutch fluid together. Also, avoid mixing DOT 3 and DOT 4 brake fluids even if they are the same brand. ...

Spark plugs
It may be difficult to replace the spark plugs. It is recommended that you have the spark plugs replaced by your SUBARU dealer. The spark plugs should be replaced according to the maintenance sched ...