[GreenTDI]

Had some maintenance yesterday, like once every year. I always have this done at the official Skoda dealership where I bought my car. It's not cheap but reliable. Like the oil that's being used: a full synthetic and super thin 0W30. This could generally last much longer than one year or 10k miles. It is claimed to last double as long. But because there is so little in it (just 4 liters or a gallon), and because it is such a thin oil, it could get dirty faster. Inceasing the risk of damage. I'm that kind of person who probably changes the oil too early, just to play safe ...

No errors found in the system that could explain the loss of power from a while ago. Mechanic said that this could be due to the learning computer, and the engine management is adapted to the driving style. So if little power is required for a long time, the ECU will respond to this by delivering little power = less fuel being used.