Oil consumption seems high:
- Engine not broken in. Oil consumption is normally higher during the break-in period.
- Most owners report normal oil consumption of one litre over several thousand km.

- CCV (crank case vent) trouble. Check for restriction in the air filter or intake system which could be causing abnormal amounts of oil to be sucked in through the CCV system, or pressurized out of other openings due to restriction in the CCV system.

- It is NORMAL for a small amount of oil to get into the air intake system through the CCV (crankcase vent) hose, which then contaminates the turbo compressor and all intercooler pipes including the intercooler itself, and continues on to contaminate the intake manifold. Refer to sections 7.f (intercooler cleaning), 7.g (intake manifold and EGR cleaning). CONSIDER THE POSSIBILITY THAT OIL FOUND IN THE INTAKE SYSTEM IS *ALL* COMING FROM THE CRANKCASE VENT BEFORE CONDEMNING THE TURBOCHARGER!!!!

- Oil leaks. See next section.

- Turbocharger seal problems. This failure is extremely rare on vehicles that have seen their proper oil changes using the proper type (synthetic oil rated CG-4 minimum!) and viscosity of oil.

- Internal engine problems, due to leaking rings or valve stem seals.