2006 Subaru Legacy Owner's Manual - Page 352
2006 Subaru Legacy Manual
Page 352 highlights
Maintenance and service 11-19 remove the air cleaner element. 6. Clean the inside of the air cleaner cover and case with a damp cloth and install a new air cleaner element. Spark plugs Recommended spark plugs 2.5-liter non-turbo models: FR5AP-11 (NGK) When disconnecting the spark plug cables, always grasp the spark plug cap, not the cables. Make sure the cables are replaced in the correct order. 2.5-liter turbo and 3.0-liter models: ILFR6B (NGK) B00115 7. To install the air cleaner case cover, insert the three projections on the air cleaner case cover into the slits on the air cleaner case and then snap the two clamps on the air cleaner case cover. B00027 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 schedule in the "Warranty and Maintenance Booklet".
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