See also:

Fuel
Use of a fuel which is low in quality or use of an inappropriate fuel additive may cause engine damage. ...

Breaking-in of new brake pads and linings
When replacing the brake pad or lining, use only genuine SUBARU parts. After replacement, the new parts must be broken in as follows. ...

Lubrication oil circulation in the refrigerant circuit
Operate the air conditioner compressor at a low engine speed (at idle or low driving speeds) a few minutes each month during the off-season to circulate its oil. ...