Car starts immediately smoking blue out of exhaust approximately one time in a month. Smokes hard. I see it from mirror. Only way to stop it is to shut down engine and start again 1-2 minutes after. Everything will be normal. Hyundai sonata 2.0 crdi 2006 137 000 km
You're burning oil. The amount of smoke you see is irrelevant as it could be affected by how long it was parked. I suspect you are leaking oil along a valve but it could be a few different things such as a stuck piston ring.