If you don't use the right oil, then your VAG variable servicing is out the window. major annoyance generally - the VAGs come either on fixed or variable and you can elect which one to go keep with on a service with VAG. go to an indy service place and they often fill up with the "wrong" oil, fvcking up your variable indicator. look in the handbook for a manual override for the indicator...
torquey diesel plus FWD and 17's can get a bit expensive! ric