Engine only has 35,000 White smoke out of tail pipe after it warming up. Replace the PCV valve/hoses, Turbo as mention by mechanic. Did a compression test and good results 170 lbs with one cylinder ar 165 lbs. Could it be the valve stem seals ? or do I need to drive the car to clean out the oil in the pipes. I have started it and ran it for 20 mins. Any help is appreciated. Thanks
 
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