Have 2009 911 C4S cab. Excellent car except for oil usage. Book says to expect to use 1 quart every 800 miles or so initially. However, with 48,000 miles it is still using a quart every 700-800 miles. Have had all regular inspections at dealer with no other problems. Car is close to end of warranty. Is this a problem?
Country: United StatesMake: PorscheModel: 911 Carrera 4SYear: 2009
Routine dealer servicing with no major problems. They downplay the oil use
No, this is not a problem. It is actually normal in modern car with high compression engine.
Many high compression engine with Solenoid hydraulic valve for camshaft control does burn a small of oil.
It is normal don't worry!
If you need further explanation please let me know.
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Make sure you are using mobil 1 what Porsche recommended.
Engine oilPorsche recommends Mobil 1 Only approved in the following viscosities:SAE 0w-40, SAE 5w-40, SAE 5w-50Recommended oil viscosity ranges dependent on ambient temperature.Generally above -13 deg. F/-25 deg C SAE 0w-40, 5w-40, 5w-50 Generally below -13 deg. F/-25 deg C SAE 0w-40
Over 10 years in the Import Auto industry. Engineering background and diagnostic is my specialty.