I just changed the spark plugs in my car, and the spark plugs I think are oil fouled. They look similar to this picture,
http://www.bullittarchive.com/Maintenance/Reading_Spark_Plugs/oilf1.gif

Althought not as bad in the picture, how can I stop this from happening? I read it would eventually damage the catalyc convertor.

__________________
87' 300E champagne - Euro headlights and corners, 8-hole rims, 140,000miles/220,00km.