Well I have a 92 Corolla that I just bought a couple of months ago. About 2 weeks ago I began to notice that when I start the car in the morning blue smoke would come out of the exhaust for a few seconds. Then everything would be normal. The car still drives great, everything seems fine. After doing some research online, some people have suggested that it's a valve stem seal problem. Can anyone tell me for sure or at least pretty certainly that the valve stem seal is probably what is causing the problem? And also can someone please tell me how much it would cause to fix the problem? or is it something that's not worth fixing? I'm only looking to keep the car for probably another year, so should I invest the money to fix it? Is there anyway to somehow alleviate the problem without taking it to a machanic? Thank you very much, any help would be greatly appreciated.