Comments on: 6 Causes of Oil on Spark Plug Threads (and in Wells)

By: Sean

Sean — Mon, 28 Nov 2022 17:57:22 +0000

Which side of the spark plug did you find the oil on? If it’s the valve cover gasket, you would see oil on the outside of the plug (where the coils or wires attach).

I think it depends on where the valve cover gasket is leaking. I can’t say for sure whether you’d only see oil on one or multiple plugs.

By: Tom Traveller

Tom Traveller — Sun, 27 Nov 2022 10:59:34 +0000

Have oil on spark plug of Cylinder 1 of a Honda CRV.
If the valve cover gaskets is leaking would you expect oil on more than one spark plug?
If this is the case then something else in your list of possible causes is causing the problem …

By: Sean

Sean — Mon, 14 Nov 2022 15:22:20 +0000

In reply to Cesar Castillo. I don't know. Did you ever determine the root cause of the engine oil on the spark plugs?

By: Sean

Sean — Mon, 14 Nov 2022 15:12:58 +0000

In reply to Mike Irlando.

It’s really hard to overrev an automatic. Even if you hit redline, that’s not over revving.

That said, check the intake to see if there’s excessive oil there. If there’s not, I might consider doing a leak down test to determine the source of the oil leak, since it’s internal.

By: Cesar Castillo

Cesar Castillo — Sat, 12 Nov 2022 03:39:08 +0000

2011 Cadillac cts coupe 3.6 recently replaced spark plugs and all of them were wet with engine oil.
I have to travel 1200 miles back and forth… is there risk of permanent engine damage?

By: Mike Irlando

Mike Irlando — Thu, 10 Nov 2022 21:03:44 +0000

Thx for the tips. I was driving my 2016 2.4 Sonata and had put it in 1st gear. I over revved the engine before I put it back into drive. The engine stopped and now it won’t turn over. I pulled all 4 spark plugs and all 4 were coated with oil on the bottom of the plugs. Any ideas about the problem? I might be willing to fix the top end but not the bottom. 190,000 miles

By: Sean

Sean — Thu, 01 Sep 2022 16:53:22 +0000

In reply to Travis lutz. I don't know. The oil could be leaking past the intake valve in that cylinder, or perhaps there is a seal leaking somewhere (like around one spark plug o-ring).

By: Travis lutz

Travis lutz — Tue, 30 Aug 2022 06:07:14 +0000

I have a 06 dodge stratus all the plugs we’re dry but 1 front center plug had
Good amount of oil on it why would only 1 plug have oil

By: Sean

Sean — Mon, 11 Jul 2022 16:59:38 +0000

In reply to Kenneth Sonnyboy Modisakeng. There are many possible reasons a car could be down on power. Have you noticed any other symptoms? Is the check engine light on? Does the car stumble, hesitate, or misfire? Does it sound like the transmission is slipping (RPM increases but you don't go any faster)?

By: Kenneth Sonnyboy Modisakeng

Kenneth Sonnyboy Modisakeng — Sat, 09 Jul 2022 18:27:49 +0000

My jetta 6 doesn’t have power when I accelerate