Question about 1990 Nissan 300ZX

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My 300zx got smoke issue but im not sure.smoke come both sides when i start the car.it got little oil leak from turbos.but once engine got hot the smoke goes away.when driving it doesnt smoke.but it happens only starting.its starts pefeclty.its driven nearly 7000 thousand km since last service.if this ok if i get done a car service?i normaly doesnt drive that car.is this happening because of cold wether?its a mostly white litte gray smoke.that smoke doesnt come out soon after i start but after few minitues.can anyone have idea why this happens

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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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