well, i'm not one for abusing the car just to get some work done, to be honest. i'm not happy about the fact i've done 25% of the test and there's no drop so far, yet the last time i topped up i got the oil light about 400 miles later, but knowing my luck i'd flog the ar$e off her and possibly takes years off the life of some part, and still pass the test so i'd have knackered something for no gain! i'm running the test legit, see where it goes. i might need another oil test down the line, or Audi might have done some sort of recall in the future, but i'm logging everything so i know the full picture. if she passes this time, i'll have to have a talk over w/ someone because i'm still convinced summat isn't right, given the black tailpipes etc, but i'll cross that road when i come to it.