Burinmg oil for no reason and no leak

Asked by GuruTTX3L Jun 19, 2018 at 08:33 PM about the 2012 Porsche Cayenne S AWD

Question type: General

I have a 2012 Porsche Cayenne S with 45,500 miles, Every 1200 miles or so I need to add half quart of Oil There is no leak and burning oil from Exhaust.  S, what is the reason.

3 Answers

103,215

First look at PCV, a bad PCV can cause excessive pressure in the crankcase and pushes the oil out the engine's seals and gaskets. If that looks ok, try a leak-down test, maybe you have a broken piston ring or excessive blow-by.

2 people found this helpful.

1 quart in 2,400 miles is not that bad for modern thin oil. Welcome to the future.

1 people found this helpful.
7,465

He's right but the oil control rings could be sticking as well as the oil return holes behind them could have become restricted not allowing most of the oil to return to the crankcase. Have a friend follow you onto the highway, open it up then let off the gas, a small puff off smoke when you let off would indicate that in which case i would recommend to have a reputable european shop flush the oil system with specific cleaners

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