Just purchased T/Sienna 2004 \LE at 73,000 miles. on 2004 Toyota Sienna

I am observing a white smoke from exhaust when Engine is relatively cold. And also a significant shot of Engine Oil below minimum point after high way driving.What is the fault and what should done to correct the fault? Thanks.

1 answer
smoke could be condensation from being cold air meeting hot air assuming it goes away when hot.

oil, you need a wet and dry compression test to verify the rings are good. hard to say exactly with out the proper testing.