See also:

New Designs for 2011
In front, the 2011 WRX STI models feature sharpened bumper corners and wider, blacked-out fog lamp nacelles to accentuate the "wide and low" profile. A jutting lip spoiler with three-dim ...

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

Changing the oil and oil filter
Change the oil and oil filter according to the maintenance schedule in the “Warranty and Maintenance Booklet”. The engine oil and oil filter must be changed more frequently than listed in the mai ...