1999 ply brz oil on plugs,2.4L outer plugs dry,2 inner plugs coated in oil.Why??
Nov 17, 2010 at 8:04 PM
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DOCFIXIT
CERTIFIED EXPERT
18,828 POSTS
would have to say oil rings faulty. Has compression been checked?
Nov 17, 2010 at 8:07 PM
AKRON
MEMBER
3 POSTS
no not yet,will that determine problem?Is it ok to drive like this?It seems to run good,even better since i installed new plugs, but...
Nov 17, 2010 at 8:33 PM
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WRENCHTECH
CERTIFIED EXPERT
20,761 POSTS
I suspect the oil is on the outside of the plug.
You just have a leaking valve cover gasket. It seals around the spark plug tubes and any leaks will run down into the tube and onto the plugs.