I have a 1989 rhd 300zx TT VG30DETT. I have owned the car for about 3 weeks now. As it starts up it has white smoke from the exhaust. It has no leaks. Checked compression and was perfectly good. Spark plugs are still silver and no water/etc sitting in them. As it warms up it seems to go away but is still there a little bit. I’m not sure if it has a oil leak from turbos or what it could be??