Rising Oil Levels and diesel particulate filters

Hello - We are changing our tow car in the summer from a Volvo XC90 which has been a terrific tow car but  fuel consumption is poor.  We are considering the new Skoda Superb 2.0TDI 170 PS.  I have read a bit on the web about a range of problems accross manufactures of new diesels with rising oil levels/ contamination of oil and dpf's needing replaced early in car's life.  Do any members have any experiences with the Skoda - good or bad - I would be interested to hear.