Recommended spark plugs

NOTE
For the recommended spark plugs, refer to “Electrical system”.

    See also:

    For U.S.A.
    The following information has been compiled according to Code of Federal Regulations “Title 49, Part 575”. ...

    Foreword
    Congratulations on choosing a SUBARU vehicle. This Owner’s Manual has all the information necessary to keep your SUBARU in excellent condition and to properly maintain the emission control system ...

    Rear differential oil temperature warning light (STI)
    Reduce vehicle speed and park the vehicle in a safe place as soon as possible if the R.DIFF TEMP light illuminates. Continued driving with this light illuminated can damage the rear differential ...