Oil burning on startup

[Michael]

I have a 1997 Olds 88, When I changed the oil and filter (I used 10W30 Castrol) I put some seafoam in with the oil and ever since then it has been making a big cloud of blue smoke when I start it up. I changed the oil again and it started smoking again in a few days. It seams the longer it sits the bigger the cloud. I have to put about one quart in it a month. It was also skipping a little and the check engine light came on. I took it to Auto Zone and they said it was a cylinder four missfire. I changed the spark plug in cylinder four and the one I took out had black stuff on it and oil in the threads. I'm guessing the black stuff was burnt oil. I don't know how the oil is getting in there or if the seafoam had anything to do with it. Can anyone help?

 

[Joe4speed]

Generally, oil smoke on startup is caused by worn valve seals. It's not enough leaking in to smoke all the time, but when it sits for a while oil will drip from your heads into the cylinders and burn off when you start it.
My '93 88 has done this for a while now. It's not a serious problem, besides having to replace spark plugs and having to add oil more often than usual.

 

[Michael]

Originally posted by Joe4speed@Apr 12 2005, 01:03 AM
Generally, oil smoke on startup is caused by worn valve seals. It's not enough leaking in to smoke all the time, but when it sits for a while oil will drip from your heads into the cylinders and burn off when you start it.
My '93 88 has done this for a while now. It's not a serious problem, besides having to replace spark plugs and having to add oil more often than usual.

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Thank you