FYI. My 150bhp tdi uses needs 1.2 litres extra oil between the 30000km services. 

Was there a conclusion reached here? I just popped my oil filler cap and it was alot of pressure. I've tinkered with the PCV system om some gasoline cars and there it should be a slight suction at the oil filler cap. But now this is a diesel, maybe theres too much compression/blow by in a diesel to get a vaccum at the cap? 

Is there a definite answer for this? 😅

Sorry, appart from being called an idiot for slightly opening the oil filler cap with the engine running by an indy VAG technician, nothing new came to light. Maybe it's normal for turbo diesel engines...

 

I'm also sorry to say that I became too tired of the incessant, small but soon to be expensive issues and parted ways with the Superb. It was an ok time to sell given the scarcity of new car deliveries, so I got a fair price for it. I'm now running 100% on my cheap and easy to fix, cheap to run LPG converted 21 yo Opel/vauxhall astra estate. Sad to leave the comfort, space and security of the Superb, but can't beat LPG and a 25€ full service on my own garage for running costs. Well, the wife's nissan Leaf can, but then again it cost a arm and a leg 😅.

 

Cheers and happy Skoda driving, I think I'll turn to an oldish petrol Merc (C or E class) for LPG conversion when the Opel dies.