GM Service Manual Online
For 1990-2009 cars only

Engine

Spark Plug Type

Spark Plug Gap

Notice: Allow the engine to cool down before removing the spark plugs. Removing the spark plugs from an engine at operating temperature may damage the spark plug threads in the aluminum cylinder head..

1.8L

Denso Type K16TR11

1.0-1.1 mm (0.039-0.043 in)

NGK Type BKR5EKB11