When I had a VX Cav 2000 16V GSI 4X4 I used to like it when it had had a long hard run and the exhaust got cleaned out, same on VW Passat 2.8 V6 4Motion, but with my Audi S4 B8 I've yet to be able to work it hard enough for long enough to end up with clean tail pipes. As I bought it secondhand and with Milltek exhaust with big single oval black tail pipes, it is very easy to clean the tail pipes out, but it does not "use" oil.
I had a Cav GSi 4x4, needed a big boot to get the correct model description on!