Oil in #5 spark plug Cylinder
My 1992 Acura vigor had an oil leak from the distributor onto the engine. Replaced O-rings on distributor collar last week. The following week, Oil continued to leak from the distributor; car began to run rough. Replaced collar and collar o-rings and distributor cap o-ring today. Checked my spark plugs after replacing the distributor. #5 cylinder spark plug was wet with oil and the cylinder contained oil. Cleaned oil from spark plug and cylinder. Drove the car and it ran smooth; doesn't appear to be leaking oil from the distributor.
What are some of the causes for oil in the cylinder?
Thank you.
Ann