MMT
Some gasoline contains an octane-enhancing additive called MMT (Methylcyclopentadienyl Manganese Tricarbonyl). If you use such fuels, your emission control system performance may deteriorate and the CHECK ENGINE warning light/Malfunction indicator lamp may turn on. If this happens, return to your authorized SUBARU Dealer for service. If it is determined that the condition is caused by the type of fuel used, repairs may not be covered by your warranty.
See also:
Other bulbs
Other bulbs may be difficult to replace. We recommend that you have the bulbs
replaced by your SUBARU dealer if necessary. ...
Immobilizer system
This light blinks approximately 60 seconds after the ignition switch is turned
from “ON” position to the “Acc” or “LOCK” position or immediately after the key
is pulled out. Refer to “Immobilizer” ...