oil on spark plugs

[Phoenix21]

quick question what would cause there to be oil on the spark plugs when you remove them ??
thanks guys

[bandit10]

leaking valve stem seals, or worn piston rings.

[VR38]

You mean the threads???
Leaking rocker cover gaskets.

[baza]

if there is oil on the threads , may be rocker covers leaking a bit of oil and leaking into the recess in cylinder head where the spark plugs screw in . if the threads are dry and the tips of the plugs are oily , then you may have mechanical problems , worn piston rings , valve stem seals , too much oil in sump .....etc .

[Vee-ard]

+1 to all 3 posts.

[Phoenix21]

thanks guys just needed to check