See also:

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 ...

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

2011 Subaru Impreza WRX STi review
Driving the 2011 Subaru Impreza WRX STi transported me to a world that was completely foreign. It's a world that's less centered on booster seats and storage cubbies and more focused on rally raci ...