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

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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.