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My car has only 38k miles on 2010 elantra blue. The 2 spark plugs threads on the right where caked with oil... I just had an oil change on Sunday, sept. 22, 2013 and I replaced spark plugs on Monday, the old spark plugs where already caked with the new oil on them. I have already asked some mechanic friend and they said its the seal in the cylinders went bad. I think it may be worse than that... What do u think?
 

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I have already asked some mechanic friend and they said its the seal in the cylinders went bad. I think it may be worse than that... What do u think?
I think the story is incomplete.

What exactly do you mean by "caked on" ??
What the threads look like is usually meaningless; what did the electrode and insulator area look like ??

My first guess would lean more towards a leaking valve cover gasket.......but tests can be done to prove what is going on.
The tests are not free but not terribly expensive either.

I strongly suggest that you not start replacing parts.....or making plans to sell the car......based only on a wild guess.
 

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I think the story is incomplete.

What exactly do you mean by "caked on" ??
What the threads look like is usually meaningless; what did the electrode and insulator area look like ??

My first guess would lean more towards a leaking valve cover gasket.......but tests can be done to prove what is going on.
The tests are not free but not terribly expensive either.

I strongly suggest that you not start replacing parts.....or making plans to sell the car......based only on a wild guess.
Its not exactly a wild guess... If his plugs are caked in oil, especially in the threads it means his elantra has likely blown a couple piston rings and is getting oil blowing up into the plugs. I doubt its a leaky gasket or else all the plugs would be swimming in oil...
 

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If his plugs are caked in oil, especially in the threads it means his elantra has likely blown a couple piston rings .
It depends on the severity.

It is perfectly normal for plug threads to have a dark brown to black deposit caked on them after long periods of use. The high cylinder pressure blows a TINY bit of fuel and oil up in there where it bakes over time. The effect is usually very noticeable near the tip and tapers off rapidly toward the top.
 

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It depends on the severity.

It is perfectly normal for plug threads to have a dark brown to black deposit caked on them after long periods of use. The high cylinder pressure blows a TINY bit of fuel and oil up in there where it bakes over time. The effect is usually very noticeable near the tip and tapers off rapidly toward the top.
yes agreed, but the key is over time. OP just replaced his plugs

The 2 spark plugs threads on the right where caked with oil.. I just had an oil change on Sunday, sept. 22, 2013 and I replaced spark plugs on Monday, the old spark plugs where already caked with the new oil on them. I have already asked some mechanic friend and they said its the seal in the cylinders went bad. I think it may be worse than that... What do u think?
Although I'm not entirely sure what he means by caked with new oil, if its fresh it wont be caked on.... and if its not caked and its liquid oil in the threads there is more of an issue than typical blowback..
 

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being a 3 year old car, shouldn't it be under warranty?
i bet you can take your elantra into a Hyundai dealer and have this issue dealt with under warranty with no cost to you.
 

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2000 Chevy Prism with Oil Caked on Spark Plug

I am having the same issue but here is a picture of my problem.



https://scontent-a.xx.fbcdn.net/hphotos-ash3/q71/s720x720/999812_4372720774819_2112598920_n.jpg

<img src="https://scontent-a.xx.fbcdn.net/hphotos-ash3/q71/s720x720/999812_4372720774819_2112598920_n.jpg" width="540" height="720" />

I am putting about 2 quarts of oil in my car every 2-3 weeks. I drive about 50 miles through city/highway streets each day. I have about 160,000 miles on the car.

I don't remember seeing a pool of oil in the cylinder. That doesn't mean it wasn't there though.

I took it to a mechanic they charged me $700 to fix the gasket, it worked well enough for about a month, but i still have the same problem.

Can anyone help me?!
 

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Can anyone help me?!
Probably not.
You have already been screwed once by an incomplete diagnosis.
Your engine likely is just worn out.

How much oil is it using since the repair ??
If finances are really tight, hotter plugs changed more often might get
you buy for another year or so.

Might want to try "high mileage oil" too.

That problem is NOT the same as what the OP described......as your threads look perfectly clear.
 
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