Outback F6-3.0L DOHC (2006)
Spark Plug: Adjustments
Spark Plug
ADJUSTMENT
Clean the spark plugs using a wire brush.
Clean and remove the carbon or oxide deposits.
But do not wear away ceramic insulator at this time.
If deposits are too stubborn, replace the spark plugs.
NOTE: Do not use a plug cleaner because the spark plugs are applied with iridium tip.