Question about 1990 Nissan 300ZX
It sounds like you may need valve seals.
The oil sits in the head after the engine is cut off and leaks around the seals into the cylinder.
When you start the engine it burns the oil and sends the smoke out of the tailpipes.
It does not hurt anything much if it is not to bad.
Posted on Jun 04, 2009
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Posted on Jan 02, 2017
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