See also:

Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C. Those grades represent the tire’s ability to stop on wet pavement as measured under controlled conditions on specified governme ...

Other markings
The following makings are also placed on the sidewall. Maximum permissible inflation pressure The maximum cold inflation pressure to which this tire may be inflated. For example, “350 kPa (51 PSI) ...

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 ...